EFC International
EFC International
1940 Craigshire St. Louis,
MO 63146-4008
Phone: 1 314.434.28881
Contact: www.efc-intl.com/contact
Website: www.efc-intl.com
Print Back
Spirol® Coiled Pins are designed with a unique 2-1/4 coil, allowing them to compress evenly and distribute stress equally. They compress from the outer edge inward, so force direction does not reduce flexibility or shear strength - as loads are applied from any direction, these pins compress into a solid tube. And since flexibility, strength, and diameter must be in proper relation to each other and to the hole, EFC offers the Spirol® Superflex version in Standard and Heavy Duties to suit your specific needs.
Unit of Measure

Specifications

Shear Strength

 N/A Standard Duty

Length

 N/A 1 to 1/4 to 3 in1.250 to 3.000 in

Maximum Hole Diameter

 N/A 0.319 in

Minimum Hole Diameter

 N/A 0.308 in

Maximum Chamfer Diameter B

 N/A 0.304 in

Maximum Pin Diameter D1

 N/A 0.337 in

Maximum Pin Diameter D2

 N/A 0.319 in

Minimum Pin Diameter D1

 N/A 0.324 in

Minimum Pin Diameter D2

 N/A 0.311 in

Chamfer Length C

 N/A 0.08 in

Nominal Pin Size (Fractional)

 N/A 5/16 in

Nominal Pin Size (Decimal)

 N/A 0.312 in

Features and Benefits

Features and Benefits

 N/A Extra flexibility is designed into the outer coil of Spirol® Series 600 Superflex Coiled Pins and the expanded diameter is reduced. The benefits are low insertion force and enhanced flexibility in the installed condition.