5/8"-18 x 1-1/2" Yellow Zinc Hex Head Cap Screw Grade 8

In stock
SKU: 9961
Regular price $3.00

K.L. Jack & Co.5/8"-18 x 1-1/2" Yellow Zinc Hex Head Cap Screw Grade 8

Grade 8 Hex Head Cap Screws are manufactured from medium carbon alloy steel that has been quenched and tempered for strength. Grade 8 is the highest grade offering of the SAE J429 classification with a minimum tensile strength exceeding that of Gr.5 by 25% to over 40%, depending on the diameter. Grade 8 HHCS are commonly used in heavy construction equipment, commercial vehicles and applications that demand a high strength fastener. Hex Head Cap screws feature an integral washer face under the head for a smooth bearing surface and a chamfered thread at the tip to allow for ease of assembly. They can be used in a threaded hole or mated with a nut in a through bolting application. Grade 8 bolts are identified by a head marking with 6 radial lines evenly spaced 60 degrees apart. They meet the material specification SAE J429 Grade 8 and can be supplied either in a plain finish or with a Zinc Yellow (Dichromate) plating with a chromate secondary layer that offers additional protection from corrosion and has an attractive yellow/gold appearance.

Manufacturer KL Jack Quality Vendor
Item Type Hex Cap Screw - Inch
System of Measurement Inch
Drive Type Hex
Diameter 5/8"
Length (inches) 1-1/2"
Finish Yellow Zinc
Grade 8
Head Style Hex
Hex Size 15/16"
Material Steel
Supplier Part Number 16257
Tensile Strength 150,000 PSI
Threads Per Inch 18
Thread Style Fully Threaded
Thread Type Fine

62F150HCS8Z


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