SDS Self Drilling Screw with EPDM Rubber Washer Roofing

Model NO.: GLS-005
Grade: 8.8
Heat Treatment: Hot-Working
Delivery: 30-40 Days
Applied Area: Building, Machinery, Auto, Car Wheel
QC Equipment: Salt Spray Machine, Hardness Testor, Caliper
Brand: Gl
Process: Cold Forming
Specialty: OEM, ODM
Sample: Free Sample in Store
QC Control: Inspect 30mins in Production and Before Delivery
Service: Response in One Hour
Trademark: Global
Specification: (Dia)M3.5-6.3*(Length)9.5-200mm
Origin: China
HS Code: 7318149001
Model NO.: GLS-005
Grade: 8.8
Heat Treatment: Hot-Working
Delivery: 30-40 Days
Applied Area: Building, Machinery, Auto, Car Wheel
QC Equipment: Salt Spray Machine, Hardness Testor, Caliper
Brand: Gl
Process: Cold Forming
Specialty: OEM, ODM
Sample: Free Sample in Store
QC Control: Inspect 30mins in Production and Before Delivery
Service: Response in One Hour
Trademark: Global
Specification: (Dia)M3.5-6.3*(Length)9.5-200mm
Origin: China
HS Code: 7318149001
Product Description:
High Quality Fastener Self Drilling Screw Roofing Screw

Product specification
Standard DIN, BS, ANSI, JIS, GB and so on
Head Type Flat Head,  Pan Head, Countersunk Head, Round Cone Head, Hex Head, Round with Washer Head, Pan with Washer Head and so on, as customer requires
Raw Material 1, Carbon Steel: C1022
5, Stainless Steel: SS201, SS301, SS303, SS304, SS316, SS416, SS420
Surface Finish Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG) phosphorization,Black Oxide,Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated,dacromat, mechanical coated and RoHS
hot-working, make hardness up to 6.8,8.8, 9.8, 10.9, 12.9 grade
Heat Treatment Heat treatment with the material, and heat treatment with the product
Certifications SGS
Sample Availability Samples are available.
MOQ we accept  test order of small quantity
Price Terms T/T, L/C, western union, paypal, etc.
Lead Time 7-40days, according to customer's order qty and detailed requirements
Packing 25kgs/carton or 1000pcs/per box or as customers' special request.


SDS Self Drilling Screw with EPDM Rubber Washer RoofingSDS Self Drilling Screw with EPDM Rubber Washer Roofing
SDS Self Drilling Screw with EPDM Rubber Washer RoofingSDS Self Drilling Screw with EPDM Rubber Washer Roofing


Contact

If you're insterested in our products, please do not hesitate to send us an email
or call us at +86 18072687675 (Mobile)directly. 


  Product Description:
High Quality Fastener Self Drilling Screw Roofing Screw

Product specification
Standard DIN, BS, ANSI, JIS, GB and so on
Head Type Flat Head,  Pan Head, Countersunk Head, Round Cone Head, Hex Head, Round with Washer Head, Pan with Washer Head and so on, as customer requires
Raw Material 1, Carbon Steel: C1022
5, Stainless Steel: SS201, SS301, SS303, SS304, SS316, SS416, SS420
Surface Finish Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG) phosphorization,Black Oxide,Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated,dacromat, mechanical coated and RoHS
hot-working, make hardness up to 6.8,8.8, 9.8, 10.9, 12.9 grade
Heat Treatment Heat treatment with the material, and heat treatment with the product
Certifications SGS
Sample Availability Samples are available.
MOQ we accept  test order of small quantity
Price Terms T/T, L/C, western union, paypal, etc.
Lead Time 7-40days, according to customer's order qty and detailed requirements
Packing 25kgs/carton or 1000pcs/per box or as customers' special request.


SDS Self Drilling Screw with EPDM Rubber Washer RoofingSDS Self Drilling Screw with EPDM Rubber Washer Roofing
SDS Self Drilling Screw with EPDM Rubber Washer RoofingSDS Self Drilling Screw with EPDM Rubber Washer Roofing


Contact

If you're insterested in our products, please do not hesitate to send us an email
or call us at +86 18072687675 (Mobile)directly. 


 

  Asbestos was added as an common ingredient to Brake Pads post-WWI, as car speeds began to increase, because research showed that its properties allowed it to absorb the heat (which can reach 500 °F) while still providing the friction necessary to stop a vehicle. However, as the serious health-related hazards of asbestos eventually started to become apparent, other materials had to be found. Asbestos brake pads have largely been replaced by non-asbestos organic (NAO) materials in first world countries. Today, brake pad materials are classified into one of four principal categories, as follows:

 Non-metallic materials - these are made from a combination of various synthetic substances bonded into a composite, principally in the form of cellulose, aramid, PAN, and sintered glass. They are gentle on rotors, but produce a fair amount of dust, thus having a short service life.

Semi-metallic materials - synthetics mixed with varying proportions of flaked metals. These are harder than non-metallic pads, more fade-resistant and longer lasting, but at the cost of increased wear to the rotor/drum which then must be replaced sooner. They also require more actuating force than non-metallic pads in order to generate braking torque.

Fully metallic materials - these pads are used only in racing vehicles, and are composed of sintered steel without any synthetic additives. They are very long-lasting, but require more force to slow a vehicle while wearing off the rotors faster. They also tend to be very loud.

Ceramic materials - Composed of clay and porcelain bonded to copper flakes and filaments, these are a good compromise between the durability of the metal pads, grip and fade resistance of the synthetic variety. Their principal drawback, however, is that unlike the previous three types, despite the presence of the copper (which has a high thermal conductivity), ceramic pads generally do not dissipate heat well, which can eventually cause the pads or other components of the braking system to warp.However, because the ceramic materials causes the braking sound to be elevated beyond that of human hearing, they are exceptionally quiet.

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