Din931 Hex Head Bolt
DIN931 Hex Head Bolts are metric half-thread carbon steel fasteners manufactured strictly in accordance with DIN931 standard. Featuring a smooth shank section and partial threaded area, they are widely used for structural assembly requiring high shear resistance. We produce matching hex nuts in‑house and supply complete bolt-nut sets for one‑stop procurement.
Handan Hengmai Fasteners Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of din931 hex head bolt in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality din931 hex head bolt for sale here from our factory. Customized orders are welcome.
Product Overview
DIN931 Hex Head Bolts are metric half-thread carbon steel fasteners manufactured strictly in accordance with DIN931 standard. Featuring a smooth shank section and partial threaded area, they are widely used for structural assembly requiring high shear resistance. We produce matching hex nuts in‑house and supply complete bolt-nut sets for one‑stop procurement. Multiple strength grades and surface treatments are available. Our products serve general machinery, steel frames, construction equipment and mechanical assembly projects worldwide.
Product Specification
|
Parameter Item |
Standard Index |
|
Material |
Carbon steel, alloy steel |
|
Strength Grade |
Class 4.8, Class 8.8, Class 10.9, Class 12.9 |
|
Thread Precision |
6g metric coarse thread |
|
Surface Treatment |
Black oxide, electro-galvanized, hot-dip galvanized, Dacromet |
|
Size Range |
M6 – M72 |
|
Executive Standard |
DIN931 (Half Thread) |
|
Type |
Half thread hex head bolt |
Product Properties
1. Unthreaded shank improves shear strength, ideal for connections bearing transverse force;
2. Standard hexagonal head fits common spanners, sockets and automatic tightening equipment;
3. Precision rolled threads ensure smooth matching with standard nuts;
4. Diversified surface treatments meet indoor and outdoor anti-rust requirements.
Application
Suitable for mechanical equipment assembly, steel frame connection, vehicle chassis, engineering machinery and pipeline flange fastening.
Quality Control & Testing
Every batch passes thread go/no-go inspection, dimensional testing and hardness sampling. Mechanical performance test records are kept. SGS third-party test reports can be provided for bulk orders. All processes comply with ISO9001 system.
Packing, Storage, Handling And Transportation
Standard packing: inner moisture-proof PE bags + outer woven bags, palletized for sea shipment. Custom shipping marks are acceptable. Store in dry warehouses to prevent thread rust. We offer FOB, CIF, DDP logistics options.
After‑Sales & Service
Our technicians assist you to select proper grade and surface treatment. Any factory-quality defects will be replaced free of charge with freight covered. Torque reference data is available upon request.
Strategic Partners
We have supplied DIN931 hex head bolts together with our in‑house produced nuts to machinery manufacturers, hardware distributors and construction contractors across Southeast Asia, Middle East and Africa for years, maintaining stable bulk cooperation.
FAQ
Q1: What is the difference between DIN931 half thread and DIN933 full thread bolt?
A: DIN931 is half thread with smooth shank for better shear resistance; DIN933 is full thread for thinner workpieces.
Q2: Can I order matching nuts together?
A: Yes, our self-produced hex nuts can be shipped along with bolts in one batch.
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