Chromoly Header Bolt Kits, 3/8in Flange Hex Header Bolts Compatible with Chevy 1997-2013 LS Engines, Chevrolet 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, Replace # 134-1102 Header Bolts

• Application: The exhaust header bolts compatible with all 1997-2013 Chevy small block Gen III/IV LS series based engines and Chevrolet 4.8L, 5.3L, 5.7L, 6.0L, 6.2L.
• High Quality: The bolts kit are made of high-grade Chromoly and black oxide coated, which are rust resistant, corrosion resistant and durable.
• Replacement Bolts: As time goes on, manifold leaks and makes noise, because of the bolts are rust or breaking, which will affect the safety level, and the tightness will decline, only necessary to replace this bolt in time to solve it.
• Bolts Specification: 3/8in wide flange hex head, the thread size is M8x1.25mm with 30mm under head length.
• Fastener Tensile Strength: The header fasteners rated at 170,000 psi, even the most severe conditions. Each kit includes 12pc premium-quality ls header bolts and washers.

3/8in Flange Hex Header Bolts with Washers

Features:

Thread Size: M8 x 1.25mm

Head Style: Hex head

Under head Length (mm): 30mm/1.181 in

Fastener Material: 8740 chromoly

Fastener Color: Black oxide

Fastener Tensile Strength (psi): 170,000 psi

Quantity: one set of 12.