China OEM Lathe Machining Machining Parts Lathe Machined CNC Parts with Hot selling

Product Description

Pin as a positioning, locking, security and other fasteners are widely used in various industries, such as machinery, mold, electronic products, etc.. The company also produces internal thread cylindrical pin, the material has copper and stainless steel or follow clients’ requirements.

Lathe Machining Machining Parts Lathe Machined CNC Parts

Brand HangZhou Model CC-568A
Category Shoulder PIN screws Head type Cylindrical head
Slot Type Round nominal diameter 30 mm
Material Steel Aluminum Alloy Application Scope Fasteners for machinery industry
Surface treatment Galvanized Thread Tolerance 6G
Customization Yes Type Non-standard


Our company has a strong production capacity,we sale professional fastener and fittings.Our products meets the international quality system,such as ANSI and  BS. We provide the high quality and professional fastener for construction steel, car, machinery and equipment, energy,furniture, ship, railway and so on. In the whole production process, We have professional engineers to monitor the quality,we can guarantee the quality of our product.We are committed to continuously improvement and innovation, to meet customer requirements, And work closely with our partners to provide qualified parts, competitive prices and best service to every customer. We would like to thank you for your interest in our company and hope that our website will help you. If you need more information, please contact our sales department.
Screw,bolt,nut,manufacturer/supplier in china,offering carbon steel hexagonal head combined assembly screws for fan parts,Non-standard slotted fillster screw for building,non-standard slotted fillster screw and so on.

If you are interested in any of our products, please free feel to contact us. More information of our products will be forwarded to you upon receipt of your specific inquiry.

Screw international standard
1 DIN1 ISO2339 GB117 taper pins
2 DIN7 ISO2338 GB119-86 parallel pins
3 DIN84 ISO1207 GB65-85 slotted cheese head screws
4 DIN85 ISO1580 GB67-85 slotted pan head screws
5 DIN93   GB854 tab washers
6 DIN94 ISO1234 GB91 split cotter pins
7 DIN95   GB101 slotted raised csk head wood screws
8 DIN96   GB99 slotted round head wood screws
9 DIN97   GB100 slotted countersunk head wood screws
10 DIN125-A ISO708 GB97.1-85 plain washers
11 DIN125-B ISO7090 GB97.2-85 mediun washers
12 DIN126 ISO7091   plain washers
13 DIN127-A   GB7244 spring lock washers,tang ends
14 DIN127-B   GB93-87 spring lock washers,square ends
15 DIN128-A   GB7245-87 single coil spring lock washers
16 DIN137-A     curved spring washers
17 DIN137-B   GB955 wave spring washers
18 DIN186   GB37-88 t-head bolts with square neck
19 DIN188     t-head bols with double nip
20 DIN258 ISO8737   taper pins with threaded end
21 DIN261     t-head bolts
22 DIN315AF     wing nuts amercia form
23 DIN315DF   GB62-88 wing nuts germany form
24 DIN316AF     wing screws amercia form
25 DIN317DF     wing screws germany form
26 DIN3179     ball knobs
27 DIN404   GB832-88 slotted capstan screws
28 DIN417 ISO7435 GB75-85 soltted set screws with full dog point
29 DIN427 ISO2342 GB73-85 slotted set screws with chamfered end
30 DIN431   GB808-88 pipe nuts with thread
31 DIN432   GB856-88 external tap
32 DIN433 ISO7092 GB848-95 washers for cheese head screws
33 DIN434   GB852-88 square taper washers for u-sections
34 DIN435   GB852-88 square taper washers for i-sections
35 DIN436     square washers
36 DIN438 ISO7436 GB74-85 soltted set with cup point
37 DIN439 ISO4035 GB6172-86 hexagon thin nuts
38 DIN439 ISO8675 GB6173-86 hexagon thin nuts
39 DIN440 ISO7094   rounds washers for wood constructions
40 DIN443     sealing cap, push-in type
41 DIN444   GB798-88 eye bolts form
42 DIN462     internal tab washers
43 DIN463   GB855-88 washers with two taps
44 DIN464   GB834-88 knurled thumb screws with collar
45 DIN465     slotted knurled thumb screws with collar
46 DIN466   GB806-88 knurled thumb nuts with collar
47 DIN467   GB807-88 knurled thumb thin nuts
48 DIN470     sealing washers
49 DIN471   GB894.1-86 retaining rings for shafts(external),circlips
50 DIN472   GB893.1-86 retaining rings for bores(internal),circlips
51 DIN478     square head bolts with collar
52 DIN479     square hea bolts with half dog point
53 DIN480     square head bolts with collar,half dog point and rounded end
54 DIN508     t-slot nutsiso299
55 DIN525     single end studs
56 DIN529   GB799-88 masonry bolts
57 DIN546   GB817-76 slotted round nuts
58 DIN547   GB815-88 round nuts with drilled holes in one face
59 DIN551 ISO4776 GB73-85 slotted sit screws with flat point
60 DIN553 ISO7434 GB71-85 slotted set screws with cone point
61 DIN555 ISO4034   hexagon nuts
62 DIN557   GB39-88 -csquare nuts
63 DIN558 ISO4018   hexagon screws
64 DIN561     hexagon set screws with full dog point
65 DIN52     bsquare nuts without bevel(pressed nuts)
66 DIN571   GB102-86 hexagon head wood screws (coach screws)
67 DIN580 ISO3266 GB825-76 lifting eye bolts
68 DIN582     lifting eye nuts
69 DIN601 ISO4016   hexagon bolts
70 DIN603 ISO8677 GB14-88 mushroom head square neck bolts (carriage bolts)
71 DIN604     flat countersunk nib bolts
72 DIN605     flat countersunk long square neck bolts
73 DIN607     cup head nib bolts
74 DIN607     flat countersunk shout square neck bolts
75 DIN609     hexagon fitted bolts,long thread
76 DIN610     hexagon fitted bolts,short thread
77 DIN653   GB835-88 knurled thumb screws thin type
78 DIN660 ISO1051 GB867-86 round head rivets
79 DIN661 ISO1051 GB869-86 contersunk head rivets
80 DIN662 ISO1051   raised contersunk head rivets
81 DIN674 ISO1051   mushroom head rivets
82 DIN703     adjusting rings,heavy range (shafting collars)
83 DIN705   GB816-88 adjusting rings,light range(shafting collars)
84 DIN741     wire rope clips
85 DIN787T ISO299   t-slot screws
86 DIN835   GB900-88 studs-metal(end=2d)
87 DIN906     hexagon socket pipe plugs,conical thread
88 DIN908     hexagon socket screw plugs,cyl.thread
89 DIN909     hexagon head pipe plugs,conical thread
90 DIN910     hexagon head screw plugs,cyl.thread
91 DIN911 ISO2936   socket wrenches
92 DIN912 ISO4762 GB70-85 hexagon socket cap screws
93 DIN913 ISO4026 GB77-85 hexagon socket set screws with flat piont
94 DIN914 ISO4571 GB78-85 hexagon socket set screws with cone point
95 DIN915 ISO4571 GB79-85 hexagon socket set screws with dog point
96 DIN916 ISO4571 GB80-85 hexagon socket set screws with cup point
97 DIN917     hexagon cap nuts
98 DIN920     slotted short cheese head screws
99 DIN921   GB838-88 slotted large cheese head screws
100 DIN923   GB830-88 slotted pan head screws with shoulder
101 DIN927     slotted shoulder screws
102 DIN928   GB/T13680-92 square weld nuts
103 DIN929   GB/T13681-92 hexagon weld nuts
104 DIN931 ISO4014 GB5782-86 hexagon head screws
105 DIN933 ISO4017 GB5783-86 hexagon head screws
106 DIN934 ISO4032 GB6170-86 hexagon full nuts
107 DIN934 ISO8673 GB6171-86 hexagon full nuts
108 DIN935 ISO7035 GB6178-86 hexagon slotted and castle nuts
109 DIN936 ISO4035 GB6172.1-86 hexagon thin nuts
110 DIN937 ISO7038 GB6181-86 hexagon thin slotted and castle nuts
111 DIN938   GB897-88 studs metal(edn=1d)
112 DIN939   GB898-88 studs metal (end=1.25d)
113 DIN940     studs metal (end=1.5d)
114 DIN960 ISO8765 GB5785-86 hexagon head bolts,metric fine pitch thread
115 DIN961 ISO8676 GB5786-86 hexagon head bolts ,metric fine pitch thread
116 DIN962     additional shapes and versions for bolts
117 DIN963 ISO2009 GB68-85 slotted countersunk head screws
118 DIN964 ISO2571 GB69-85 slotted raised countersunk oval head screws
119 DIN965 ISO7046 GB819-85 cross recessed countersunk head screws
120 DIN966 ISO7047 GB820-85 cross recessed raised countersunk head screws
121 DIN970     hexagon nuts type-1
122 DIN971     hexagon nuts type-2
123 DIN972 ISO8674 GB6176-86 hexagon nuts with fine thread
124 DIN975   GB15389-94 threaded rods(studdings_
125 DIN976     threaded pins(stud bolts)
126 DIN979     hexagono thin slotted and castle nuts
127 DIN980 ISO7199 GB6184-86 prevailling torque type hexagon nuts,all metall nuts
128 DIN981 ISO2982 GB812-88 locknuts
129 DIN982 ISO7040 GB889.1-86 prevailling torque type hexagon nuts,heavy type,with nylon insert
130 DIN985 ISO1571 GB6172.2-86 prevailling torque type hexagon nuts,heavy type,with nyllon insert
131 DIN986     prevailling torque typedomed capnuts with nylong insert
132 DIN988     shim rings
133 DIN1052     washers for timber connectors
134 DIN1151     round plain head nails
135 DIN1440 ISO8738   plain washers for clevis pins(a)
136 DIN1441     plain washers for clevis pins
137 DIN1444 ISO2341   clevis pins with head
138 DIN1471 ISO8744 GB/T13829.2 grooved pins,taper grooved
139 DIN1472 ISO8745 GB/T13829.2 grooved pins,taper grooved half length
140 DIN1473 ISO8740   grooved pins,parallel grooved full length
141 DIN1474 ISO8741   grooved pins,reserve grooved half length
142 DIN1475 ISO8742   grooved pins,centre grooved
143 DIN1476 ISO8746 GB/T13829.3 grooved pins with round head
144 DIN1477 ISO8747   grooved pins with countersunk head
145 DIN1479     turnuckles(centre parts),made out of hexagon bar
146 DIN1480     turnuckles with eye bolt and hook bolt
147 DIN1481 ISO8752 GB879-86 spring pins,heavy type
148 DIN1587   GB802-88 hexagon domed cap nuts
149 DIN1804     slotted round nuts for hook spanner
150 DIN1816     round nuts with set holes
151 DIN2093     disc springs
152 DIN3017     hose clamps
153 DIN3404     lubricating nipples,button head
154 DIN3567     shackles for conduilts
155 DIN3570     stirrup bolts(u-bolts)
156 DIN6319   GB849-88 spherical washers,conical seats
157 DIN6325 ISO8734   parallel pins
158 DIN6330   GB56-88 hexagon nuts,1.5d
159 DIN6331   GB6177-86 hexagon nuts ,1.5d with collor
160 DIN6334     hexagon nuts,3d
161 DIN6797-a   GB862.1-87 external teeth lock washers
162 DIN6797-I   GB861.1-87 internal teeth lock washers
163 DIN6798-A   GB862.2-87 external teeth serrated lock washers 
164 DIN6798-I   GB861.2-87 internal teeth serrated lock washers
165 DIN6799   GB896-76 retaining rings for shafts(e-rings),circlips
166 DIN6885 ISO773/2491   parallel keys(forma)
167 DIN6888 ISO3912   woodruff deys
168 DIN6899     thimbles
169 DIN6900   GB9074.1-.17 screws and washers assemblies
170 DIN6901   GB9074.18-.23 tapping screws and washers assemblies
171 DIN6912     hexagon socket head cap screws with hole,low head
172 DIN6914     hexagon head bolts with large head(friction grip bolts)
173 DIN6915     hexagon nuts with large wideth across flat(friction grip nuts)
174 DIN6916     round washers for friction grip bolts
175 DIN6917     spuare taper washers for friction grip bolts on t-sections
176 DIN6923 ISO4161 GB6177-86 hexagon flange nuts
177 DIN6925 ISO7042 GB6185.1-2000 prevailing touque type hexagon nuts,all metallic nuts
178 DIN7337   GB12617/12618 blind rivets
179 DIN7338   GB875/975-86 rivets for brake and clutch lining
180 DIN7343 ISO8750   spiral pins
181 DIN7346 ISO13337   spring pins,light type
182 DIN7349     washers for bolts with heavy type spring pins
183 DIN7500     thread forming screws for iso-metric thread
184 DIN7504     self-drilling tapping screws
185 DIN7513     thread cutting screws
186 DIN7516     thread cutting screws cross recess
187 DIN7965     tee nuts with pronge
188 DIN7968   GB1228/1229/1230 hexagon head fitted bolts for steel structures
189 DIN7971 ISO1481 GB5282-85 pan head tapping screws with slot
190 DIN7972 ISO1482 GB5283-85 countersunk flat head tapping screws with slot
191 DIN7973 ISO1483 GB5284-85 raised countersunk oval head tapping screws with slot
192 DIN7976 ISO1479 GB5285-85 hexagon tapping screws
193 DIN7980 ISO8738   spring lock washers for screws with cylindrical heads
194 DIN7981 ISO7049 GB845-85 pan head tapping screws with cross recessed
195 DIN7982 ISO7050 GB846-85 countersunk flat head tapping screws with cross recessed
196 DIN7983 ISO7051 GB847-86 raised countersunk oval head tapping screws with cross recessed
197 DIN7984     hexagon scocket head cap screws with,reduced head
198 DIN7985 ISO7045 GB818-85 pan head screws with cross recessed
199 DIN7989   GB1230-84 washers for steel structures
200 DIN7990   GB1229-84 hexagon head bolts for steel structures
201 DIN7991 ISO10642   hexagon socket countersunk head screws
202 DIN7993   GB895.2-86 roundwire snap rings for shafts
203 DIN7995   BG952-86 cross recessed raised countersunk head wood screws
204 DIN7996   BG950-86 cross recessed round head wood screws
205 DIN7997   GB951-86 cross recessed countersunk head wood screws
206 DIN8140     ciol inserts,coarse,fine thread,silf locking
207 DIN9571 ISO7093 GB96-85 washers,outside diameter appro.3d
208 DIN11571     spring cotter for a bolt
209 DIN13257     belting bolts (elevator bolts)
210 DIN18182     dry wall screws
211 DIN28129   GB63-88 lifting nuts(eye nuts)
212 DIN7 0571   GB858-88 tab washers for slotted round nuts

1) Q:What’s your product range?
A:  Our product range includes screws, nuts, knobs, bolts, washers, rivet, anchor and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI NFE and BSW.Non-standard products also accepted.

2)Q:Are you a Trading company or a Manufacturer?
A: We are an Industry&Trade Company .

3) Q:Why should I choose you? What’s your advantages? Industries you are serving?
A: We are a professional manufacturer and have 9 years production and management experience in the field of fasteners .
We can provide our customers with a good solution in the area of production design, production process,packaging and after-sale service.Customer satisfaction is our sole pursuit.
4) Q:Which industry field are your product is suitable used in ?
A:Our products are  widely use in machine assembling, electronics, constructional engineering furniture cabinets, etc.

Customer Service
· 1. Well trained and experienced staffs at your service. 
· 2. Short lead time. 
· 3. International standard matched
· 4. Non-standard / standard / OEM / ODM / customized service provided. 
· 5. Small Quantity available. 
· 6. Designed in accordance with customers’ request. 
· 7. Packed and delivered by customers’ requirement.

Any more questions or demands, pls feel free to contact me!

Screw Sizes and Their Uses

Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.

The major diameter of a screw shaft

The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.

The pitch diameter of a screw shaft

When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.

The thread depth of a screw shaft

Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.

The lead of a screw shaft

Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.

The thread angle of a screw shaft

The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.

The tapped hole (or nut) into which the screw fits

A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.

China OEM Lathe Machining Machining Parts Lathe Machined CNC Parts   with Hot sellingChina OEM Lathe Machining Machining Parts Lathe Machined CNC Parts   with Hot selling