Dimensions / Size Range

We manufacture Brass Threaded Expansion Inserts in various sizes as per standard specifications, customer drawings, or samples.

Standard Size Chart

Note: All dimensions are in mm.
Pilot hole dimensions are for reference purposes only.

Material Specifications

• Free Cutting Brass IS 319 Type (I)

• Free Cutting Brass as per BS 249 Type (I)

• Standard manufacturing grade: CuZn37Pb3 (Equivalent to BS 2874)

Optional Grades (As Per Requirement)

• CZ 121

• CZ 131

• C3604

• CDA 360

• DTD 627

• High-grade free-cutting brass for superior machinability

• Custom brass composition available on request

Thread Types Available

• ISO Metric (MM Threads)

• BA Threads

• BSW Threads (Inches)

• UNC, UNF, UNEF & NPT Threads

• BSP & BSPT (Parallel & Taper Threads)

• Any special thread as per customer specification

Finishing & Coating Options

• Natural Finish

• Golden Finish

• Silver Finish

• Nickel Plated

• Chrome Plated

• Tin Plated

• Any special coating as per customer requirement

Packing Details

• Bag Packaging

• Box Packing

• Inner Plastic Packing

• Carton Packaging

• Wooden Carton Packing

Special Features

• Threads manufactured as per International Go & Not Go Gauge Standards

• Expansion design ensures high pull-out resistance

• Deep grooves for superior holding strength

• Close tolerance inner diameter (ID) after threading

• Prevents unwanted fastener flush entry

• Excellent corrosion resistance and durability

• Suitable for long-term industrial use

Applications / Usage

• Plastic Industries

• Furniture Industry

• Electronic Industry

• Automobile Industry

• General Engineering & Assembly Applications

Commercial Details

• MOQ: 1000 Pieces

• Lead Time: 3 Working Days

• Price Terms Available:

  • EX-Work

  • FOB – Free On Board

  • C&F – Cost & Freight

  • CIF – Cost, Insurance & Freight