SS304 316 Hex Collar Round Pin

Product Overview: What Is a Hex Collar Round Pin?

A hex collar round pin is a precision positioning fastener featuring a collar in the middle. This unique design makes it ideal for applications such as door hinges, mechanical positioning, and solid riveting. As a professional manufacturer, we offer a wide range of material options—from steel and stainless steel to nickel alloys—to meet your diverse requirements for strength and corrosion resistance.

Key Advantages: Materials and Performance

This product is made from high-quality stainless steel and is available in two mainstream material options:

SS304 (A2-70 / 1.4301): Suitable for general corrosive environments, offering good overall mechanical properties.

SS316 (A4-70 / 1.4401): Contains molybdenum, offering superior resistance to pitting corrosion and acid/alkali exposure, making it particularly suitable for marine and chemical environments.

Both materials meet the Grade A2-70 / A4-70 strength grade, ensuring reliable tensile and yield strengths at room temperature.

Technical Specifications and Customization Capabilities

We understand that every project has unique requirements, so we offer highly flexible customization services:

Size Range: Diameters from M3 to M64, or fully non-standard customization based on your drawings.

Manufacturing Standards: Produced strictly according to customer drawings to ensure precision and fit.

Surface Finish: Standard finish is Bright & Clean, but other finishes are available upon request.

Product Marking: Default marking is “HT&FST”; custom laser or stamped markings are available.

Applications and Industry Solutions

Due to its excellent positioning and fastening capabilities, this stainless steel collar pin is widely used in:

Industrial Door Pivots and Hinges: Wear- and corrosion-resistant, ensuring smooth, long-term operation.

Precision Mechanical Alignment: The shoulder provides precise positioning, ensuring component assembly accuracy.

Structural Fasteners: Used as solid-core rivets or pins to withstand shear loads.

Marine Engineering and Chemical Equipment: SS316 material is particularly suitable for high-salt-fog and mildly acidic or alkaline environments.

Quality Assurance, Packaging, and Shipping

Material Certificates: EN10204-3.1B certification available, ensuring material traceability and quality assurance.

Sample Service: Samples provided for thorough testing prior to bulk purchase.

Standard Packaging: Boxed → Carton → Pallet, ensuring products arrive undamaged during transit. Packaging methods can also be adjusted per customer requirements.

Payment Methods: We accept T/T and Western Union; L/C is accepted for orders exceeding $50,000.

Technical Data Reference

SS304 (1.4301) Typical Properties:

Tensile Strength: ≥520 N/mm²

Yield Strength: ≥205 N/mm²

Elongation: ≥40%

Density: 7.93 g/cm³

SS316 (1.4401) Typical Properties:

Tensile Strength: ≥520 N/mm²

Yield Strength: ≥205 N/mm²

Elongation: ≥40%

Density: 7.98 g/cm³

Note: The above values represent typical minimum values at room temperature; actual performance depends on the product’s final dimensions and heat treatment condition.

Why Choose Us?

We specialize in the manufacturing and development of custom fasteners. Whether for standard specifications or complex parts manufactured strictly to drawings, we offer a one-stop service ranging from material selection and precision machining to surface treatment. Choosing our hexagonal collar cylindrical pins means selecting precise positioning and long-lasting reliability for your equipment.