Stainless Allen Head Bolts
Stainless Allen Head Bolts are high-precision anti-corrosion fasteners manufactured according to DIN912, ISO4762 and GB/T70.1 standards. The internal hexagon drive structure enables installation in narrow recessed spaces, widely adopted for compact equipment assembly. Made of 304 / 316 stainless steel, the material forms a passive oxide film on the surface to resist rust in humid, lightly saline and outdoor environments.
Handan Hengmai Fasteners Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of stainless allen head bolts in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality stainless allen head bolts for sale here from our factory. Customized orders are welcome.
Product Overview
Stainless Allen Head Bolts are high-precision anti-corrosion fasteners manufactured according to DIN912, ISO4762 and GB/T70.1 standards. The internal hexagon drive structure enables installation in narrow recessed spaces, widely adopted for compact equipment assembly. Made of 304 / 316 stainless steel, the material forms a passive oxide film on the surface to resist rust in humid, lightly saline and outdoor environments. We produce matching nuts in‑house and supply complete bolt‑nut sets for one‑stop procurement. Our factory maintains full metric stock of coarse and fine thread sizes, provides passivation treatment, and serves precision machinery, food equipment, marine hardware and outdoor engineering projects across Belt-and-Road regions.
Product Specification
|
Parameter Item |
Standard Index |
|
Material |
304(A2‑70), 316(A4‑80) stainless steel |
|
Strength Grade |
A2‑70, A4‑80 |
|
Thread Precision |
6g metric coarse thread & fine thread |
|
Surface Treatment |
Natural finish, passivation |
|
Size Range |
M3 – M42 |
|
Executive Standards |
DIN912, ISO4762, GB/T70.1 |
|
Drive Type |
Internal hexagon socket |
Product Properties
1. Socket head design allows installation in deep, confined mounting positions, ideal for concealed assembly requirements;
2. Stainless steel material delivers excellent oxidation and corrosion resistance, suitable for long-term outdoor and wet working conditions;
3. Precision rolled threads ensure smooth assembly and reduce thread galling during repeated disassembly;
4. Uniform surface without plating, stable performance, compliant with hygiene requirements for food and medical equipment.
Application
Suitable for precision instruments, automation equipment, photovoltaic frames, food processing machinery, marine fittings, mold assembly and electronic equipment housings. Choose 316 grade for offshore and high salt fog environments.
Quality Control & Testing
Every batch undergoes thread go/no-go gauge inspection, dimensional measurement and hardness sampling. Stainless steel products carry out salt spray testing. Raw material spectral analysis certificates and SGS third-party reports are available for bulk orders. All production follows ISO9001 quality control system.
Packing, Storage, Handling And Transportation
Standard packing: inner moisture-proof PE bags + outer woven bags, palletized for sea shipment. Small orders support cartons with custom shipping marks. Store in dry, ventilated warehouses and avoid contact with chloride substances. We provide FOB, CIF, DDP multi-mode logistics solutions.
After‑Sales & Service
Pre-sales technicians help select material grade and length according to your environment. If factory-caused defective products appear after arrival, we support free replacement and bear corresponding logistics costs. We provide professional torque reference suggestions.
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