Allstar Performance Mild Steel Round D.O.M. Tubing - 1.500 x .083" - 4 Ft B2 Helmets 1/4"-20 nuts are perfect to

1/4"-20 nuts are perfect to use as a backer nut with Allstar body bolts

7/16-20 in Left Hand Thread

1975-1990 Chevrolet G20

Shoulders adjust from 15" to 40" and lap belt adjusts from 22" to 60"

Allstar Performance Mild Steel Round D.O.M. Tubing - 1.500 x .083" - 4 Ft B2 Helmets 1/4"-20 nuts are perfect toSold only in pre cut lengths. Always check wall thickness tolerance before cutting or welding, especially if the car is to be certified. Tubing wall thickness will vary. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical