ST-1200 Line Size 4

ST-1200 Line fastener components consist of a spiral-cam stud, a stud retainer, and a receptacle consisting of or containing a wire form spring.

The Size 4 components exhibit the following performance characteristics:

Stud End Diameter: 1/4" (6.35 mm)
Stud Head Diameter: 7/16" (11.13 mm)
Locked Service Tension: 30 lb
Maximum Tension without Distortion: 60 lb
Rated Shear: 150 lb
Wear Life: 5,000 uses
Maximum Sheet Separation
at 150% of Locked Service Tension:
3/64" (1.19 mm)