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Hunan Jia Shan Hardware Tech Co., Ltd.

  • China ,Hunan
  • Verified Supplier
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China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With
China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With

  1. China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With
  2. China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With
  3. China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With
  4. China M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With

M12 Iron Gr4.8 Gr8.8 Galvanized Hex Hexagon Head Metal Screw Assembled With

  1. MOQ: 10pcs
  2. Price: $0.01~2.56,Piece/Pieces
  3. Get Latest Price
Payment Terms L/C,D/A,D/P,T/T
Supply Ability 10000,Piece/Pieces,Month
Delivery Time about 12-18days
Packaging Details Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Product name SEMS SCREW
Service OEM
Corrosion Resistance Yes
Port Shenzhen, Guangzhou
Corrosionresistance High
Thread Type Standard/Customization
Package Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Finish customized
Brand Name JIASHAN
Certification ISO 9001
Place of Origin china

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,D/A,D/P,T/T Supply Ability 10000,Piece/Pieces,Month
Delivery Time about 12-18days Packaging Details Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Product name SEMS SCREW Service OEM
Corrosion Resistance Yes Port Shenzhen, Guangzhou
Corrosionresistance High Thread Type Standard/Customization
Package Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. Finish customized
Brand Name JIASHAN Certification ISO 9001
Place of Origin china
High Light M12 galvanized hex head screwGr8.8 metal screw with washerhexagon head screw assembled nut
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
Manufacturing facility for stainless steel wheel screws Quality control inspection of industrial bolts Warehouse storage of various fastener products Packaging process for stainless steel fasteners
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 ...

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Get in touch with us

  • Reach Us
  • Hunan Jia Shan Hardware Tech Co., Ltd.
  • 1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
  • https://www.cnc-partsmachining.com/

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