PARAM FASTENERS

Allen Cap Screw

Allen Cap Screws, also known as Socket Head Cap Screws, are high-strength precision fasteners designed for applications where space is limited and a clean, flush finish is required. These screws feature a cylindrical head with a hexagonal (Allen) socket drive, allowing for strong torque using an Allen key or hex wrench.

Key Features:

Material: Available in Stainless Steel, Carbon Steel, Alloy Steel

Grades: SS 304 / SS 316 / 8.8 / 10.9 / 12.9 (as per requirement)

Finish: Zinc Plated, Black Oxide, Plain, Hot Dip Galvanized

Thread: Metric & UNC/UNF

Standards: DIN 912 / ISO 4762 / ASTM

Applications:

Widely used in automotive, machinery, tooling, aerospace, electronics, and engineering assemblies requiring high clamping force with a flush finish.

Ball Plunger Screw

Ball Plunger Screws are spring-loaded devices featuring a precision steel or stainless steel ball housed inside a threaded body. They are used to apply accurate positioning, indexing, and controlled pressure in mechanical assemblies. The internal spring exerts a consistent force, allowing for easy engagement and disengagement between components.

Key Features:

Material: Stainless Steel, Carbon Steel, Brass (body) / Hardened Steel or Stainless Steel (ball)

Thread Types: Metric & Inch (UNC/UNF)

Tip Style: Ball End

Spring Force Options: Light, Medium, Heavy (as per application)

Standards: DIN 438 / ISO / Custom sizes available

Applications:

Ideal for use in jigs, fixtures, molds, indexing mechanisms, detent systems, door latches, and positioning devices across industries such as automotive, aerospace, tooling, and machinery.

Stainless Steel Flange Bolt

Stainless Steel Flange Bolts are high-strength fasteners with a hexagonal head and a built-in flange that acts as a washer to distribute the clamping load. Manufactured from corrosion-resistant stainless steel, these bolts provide excellent performance in harsh environments, offering both strength and durability.

Key Features:

Material: Stainless Steel (Grades: SS 304, SS 316, SS 202, etc.)

Design: Hex Head with Integrated Flange

Finish: Bright / Matte / Passivated

Thread Type: Metric & Inch (UNC/UNF)

Standards: DIN 6921 / ISO 1665 / ASME B18.2.1

Advantages:

Corrosion and Rust Resistance

Eliminates the Need for a Separate Washer

Even Load Distribution

Vibration Resistance

Applications:

Ideal for use in automotive, marine, construction, heavy machinery, and structural assemblies, especially in corrosive or outdoor environments where durability is essential.

Stainless Steel Cheese Head Inner Washer Slotted Bolts

Cheese Head Inner Washer Slotted Bolts are precision-engineered fasteners featuring a cylindrical (cheese-shaped) head with a slotted drive and an integrated inner washer face. The inner washer increases the bearing surface, providing improved load distribution and protection against surface damage. Manufactured from stainless steel, these bolts offer excellent corrosion resistance, durability, and aesthetic appeal.

Key Features:

Material: Stainless Steel (Grades: SS 304, SS 316, SS 202)

Head Type: Cheese Head with Built-in Inner Washer

Drive Type: Slotted Drive

Thread Type: Full or Partial Thread – Metric / Inch

Finish: Natural / Bright / Passivated

Standards: DIN 84 / IS / ISO or Custom Specifications

Applications:

Widely used in electrical panels, light mechanical assemblies, marine fittings, instrumentation, and decorative hardware where clean appearance, rust resistance, and secure fastening are important.