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{"title":"Stainless Steel Inox Ss201 304 316 316l A2 A4 Black Hexagon Torx Slot Cross","imgUrl":"https:\/\/img.chinax.com\/nimg\/dd\/ee\/109749fc7f6e40e43d97868588f8-200x200-1\/stainless_steel_inox_ss201_304_316_316l_a2_a4_black_hexagon_torx_slot_cross_recess_pan_head_metal_screw.jpg","attrs":{"Place of Origin":"china","Delivery Time":"about 12-18days","Port":"Shenzhen, Guangzhou","Package":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
{"title":"Carbon Steel 10.9 12.9 Dacromet Gumet Hot Dip Galvanized Hdg Hexagon Torx Cross","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/bb\/06873f4b88e49a0930058a385373-200x200-1\/carbon_steel_10_9_12_9_dacromet_gumet_hot_dip_galvanized_hdg_hexagon_torx_cross_recess_pan_head_metal_screw.jpg","attrs":{"Place of Origin":"china","Supply Ability":"10000,Piece\/Pieces,Month","Corrosionresistance":"High","Packaging Details":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
{"title":"M1.6 M2 M2.5 Cross Recess Pan Head Metal Screw Black Electrophoresis A2 A4 ISO","imgUrl":"https:\/\/img.chinax.com\/nimg\/58\/f2\/9130ecfec704b1c933e2bb47ce85-200x200-1\/m1_6_m2_m2_5_cross_recess_pan_head_metal_screw_black_electrophoresis_a2_a4_iso_7045.jpg","attrs":{"Place of Origin":"china","Delivery Time":"about 12-18days","Port":"Shenzhen, Guangzhou","Package":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
M4 M5 M6 Hexagon Socket Head Cap Screws With Lock Washer And Plain Washer Metal Sems Screw Din912
Product Description
These SEMS screws feature a hexagon socket head cap (DIN912) combined with both a spring lock washer and a plain flat washer pre‑assembled. The spring washer sits above the flat washer to provide vibration resistance while the flat washer protects the workpiece surface. Made from carbon steel (8.8/10.9/12.9) or stainless steel (A2/A4) with finishes such as zinc plating, black oxide or plain. Sizes M4, M5 and M6 are the most common for precision machinery, moulds and electronic equipment. The socket head allows high torque transmission and is suitable for countersunk or recessed holes.
Applications
Industry
Usage
Automotive
High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical
Connecting mechanical parts, circuit boards, engines, transmissions in various industries
Energy
Connecting power generation equipment and transmission lines
Architectural
Building structures, shipbuilding, and petrochemical equipment
CNC machine tools: tool magazines, way covers, rail clamps.
Industrial robots: reducer housings and motor mounts – double washers prevent loosening.
Optical measuring instruments: fine adjustment bases.
Electric scooters and bicycles: battery boxes, controllers.
Hex socket drive – deep engagement, high torque capability, ideal for countersunk holes.
DIN912 standard – globally recognised dimensions.
Small diameters (M4‑M6) cover precision to light industrial use.
Optional nickel or Dacromet finishes for extra corrosion protection.
Company Information
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but customers pay the freight cost.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
15000000-20000000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ...