Button Head Hex Socket Cap Stainless Steel Sems Screws , Double Washers Metric Sems Screws
Brand Name:crever
Certification:ISO
Model Number:M3-M10
Minimum Order Quantity:Negotiable
Delivery Time:10-20 working days
Payment Terms:T/T, L/C, D/P
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Location:
Suzhou Jiangsu China
Address:
Rongda Industrial Park, Xinhua Road, Wangting Town, Suzhou City, China
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Product Details
Button Head Hex Socket Cap Stainless Steel Sems Screws , Double Washers Metric Sems Screws
1. Description:
The basic Sems preassembled screw and washer was a major fastening invention that changed industry’s assembly methods. All types of washers — conical, flat, tooth, helical and many others – can be preassembled to all types of screws. Many important advantages of screw and washer assemblies have contributed to their popularity through the years:
*Eliminate small parts handling and dropped parts.
*Lower purchasing, inventory and assembly costs.
*Insure proper parts usage.
*Increase assembly, efficiency and productivity
The conventional flat washer, tooth washer or helical washer Sems meets the needs of most assembly applications. Flat Washer Sems span large holes,protect fragile surfaces and distribute load. External tooth lock washers are the preferred tooth lock washer style for preassembly as the tapered twisted teeth are on the largest radius to provide maximum torsional resistance to removal rotation. The internal tooth lock washer style is ideal when the screw head is small — such as a fillister head — and in applications where it is desirable to hide the teeth — either for appearance or to avoid snagging and scratching.
Helical washers are often used on larger diameter screws and bolts where high torques or heavy loads are involved and in hardened surface applications where confined space must be accommodated.
2. Specifications:
1. Name: Hex head Sems screws
2. Grade: C10B21, C1022, SUS201,SUS410,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: M3--M10
4. Standard: DIN ISO GB/T
5. Certification: ISO9001, SGS, CTI, ROHS
Product Name | hex head sems screws with washers |
Material | stainless steel, carbon steel, alloy steel, brass and so on |
Color | plain, black zinc, paint, decramet, HDG, ruspert, nickel and so on |
Standard | DIN GB ISO JIS BA ANSI |
Drive | Philips, hex socket, torx |
Sizes | M3-M10 |
Thread | full thread, partical thread |
Washer | flat washer, spring washer, wave washer, tooth washer |
3. Applications:
A wide variety of other Sems combinations can be provided for applications involving high torques, load distribution, electrical grounding, fragile materials, wire termination or the spanning of larger holes. Screw and washer assemblies increase torsional resistance to removal rotation, reducing potential loosening of the fastener. Sems assemblies not only reduce loosening caused by vibration but, unlike the locking features incorporated under some screw heads or on some screw threads, they also provide a compensating spring action that resists loosening caused by heat cycling and by the independent expansion and contraction of different materials that may make up the assembly
4. More pictures:
BUTTON HEAD HES SOCKET DRIVE SEMS SCREWS
Button Head Hex Socket Cap Stainless Steel Sems Screws , Double Washers Metric Sems Screws
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