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{"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."}}
M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With Washer Nut
Product Description
This complete SEMS kit includes a hexagon head bolt, a matching hex nut, a DIN125 flat washer and a DIN127 spring washer. The bolt is made of carbon steel (iron) with property class 4.8 (general duty) or 8.8 (medium‑high strength). The surface is galvanized (electro‑ or hot‑dip) for corrosion resistance. The washers are pre‑assembled on the bolt but the nut is supplied separately as a matched pair. All components follow DIN standards: DIN934 for the nut, DIN125 for the flat washer, DIN127 for the spring washer. M12 is a widely used diameter in heavy machinery and structural connections.
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
Conveyors and lifts: frame splicing and rail fixing (Grade 8.8).
Storage racks and pallet systems: column‑beam connections.
Formwork and scaffolding: Grade 4.8 for temporary structures.
Large agricultural equipment: guards and chassis with frequent nut removal.
Power tower accessories: auxiliary crossarms and ladder brackets.
Key Features
Complete kit – no need to purchase nut and washers separately.
Strength matching – nut and bolt classes are compatible, preventing thread stripping.
Galvanized finish – choose electroplated or hot‑dip for required corrosion resistance.
M12 industry standard – easily replaceable.
Hex head accepts multiple tool types (wrench, socket, spanner).
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 ...