DIN933 DIN931 Stainless Steel Hex Bolts SS304 SS306 SS316 with Metric and UNC Options

This product is a hexagon head bolt suitable for general fastening, machinery assembly, structural connections and construction projects. The hexagonal head allows installation with a standard wrench or socket. The threaded shank is designed to work with a matching hex nut and washer, helping create a secure detachable connection for metal structures, equipment frames, brackets, machine components and general industrial assemblies.

Specification Table

Surface Treatment Options

Plain Finish

The plain finish is the core surface option shown in the product attributes. It is suitable for general indoor assembly, protected equipment installations and projects where additional coating is not required.

White Zinc

White zinc treatment provides a light‑colored protective coating for general fastening applications. It can be used for machinery, brackets, equipment frames and indoor or moderately protected installations.

Yellow Zinc

Yellow zinc provides a distinctive yellow‑gold appearance and additional surface protection for general industrial and construction fastening applications.

Hot‑Dip Galvanized

Hot‑dip galvanized treatment is listed as an available surface option. It is commonly selected for outdoor structures, steel frames, support systems and applications requiring enhanced protection against environmental exposure.

The final finish should be matched with the selected material and grade. The core product attribute shows Plain, while the detailed product information lists additional zinc and hot‑dip galvanized choices.

Application

Machinery and Equipment Assembly

These hex bolts can be used for fastening machine housings, support frames, equipment bases, guards, panels and detachable mechanical components.

Steel Structures

The bolts are suitable for connecting steel plates, brackets, structural members and support frames where a threaded bolted connection is required.

Construction Projects

DIN931 and DIN933 hex bolts can be used for general building construction, metal fabrication, mounting supports and installation work involving metric or UNC threaded components.

Pipe and Support Systems

When matched with suitable nuts and washers, the bolts can be used in pipe racks, support brackets, cable support frames and equipment mounting assemblies.

Automotive and Mechanical Repair

The available metric and UNC thread options can support maintenance, repair and replacement work where the original fastener specification must be matched accurately.

Outdoor Equipment

Zinc or hot‑dip galvanized options can be considered for outdoor structures, fences, frames, brackets and support equipment, subject to the selected material and environmental requirements.

Matching Fasteners

The nut, washer and surface treatment should be selected to match the bolt material and grade. For stainless steel bolts, compatible stainless steel nuts and washers can help maintain material consistency. For galvanized or carbon steel applications, matching coated fasteners are recommended.

Packing & Delivery

The reference single package size is 20 × 15 × 10 cm, with a reference gross weight of 1.0 kg. Bulk packing arrangements should be confirmed according to the selected bolt size, material, surface treatment and order quantity.

Customized packaging is available for selected bulk orders. Customized logo, packaging and graphic requirements can also be discussed before production.

The listed minimum order quantity is 1 ton. For products in stock, the stated delivery reference is generally 5‑10 days. When production is required, the stated delivery reference is generally 15‑20 days depending on the order quantity and selected configuration.

Samples can be discussed before bulk production when the thread type, grade, finish or dimensional compatibility needs to be checked.

FAQ

1.What type of product is this?

It is a hexagon head bolt with DIN931 and DIN933 configurations.

2.What materials are available?

The product information lists stainless steel and carbon steel/stainless steel options.

3.Which strength grades are available?

The core product attribute shows Grade 8.8. The detailed product information also lists grades 4.8, 8.8, 10.9 and 12.9.

4.Are A2‑70 and A4‑80 available?

A2‑70 and A4‑80 are included in the product title information. Please confirm the required stainless steel grade before placing an order.

5.Which thread sizes are available?

Metric sizes include M4, M5, M6, M8, M10, M12, M16, M18 and M20. UNC thread options are also listed.

6.What standards can be selected?

The product information lists DIN, ANSI and BSW options. DIN931 and DIN933 configurations are included for the hex bolt product.

7.What surface treatments are available?

The core attribute shows Plain. Additional listed options include white zinc, yellow zinc and hot‑dip galvanized finishes.

8.What is the difference between DIN931 and DIN933?

DIN931 and DIN933 are different hex bolt configurations mainly associated with the threaded length and partially or fully threaded shank design. The required configuration should be confirmed according to the assembly drawing.

9.Can the bolts be customized?

Customized logo, packaging and graphics can be discussed for selected bulk orders. Custom dimensions should be confirmed according to the required size and production conditions.

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Send us your required bolt standard, material, strength grade, thread type, size, length and surface finish.

Our team will confirm the suitable DIN931 or DIN933 hex bolt configuration, matching nuts and washers, packaging plan and delivery schedule for your project.