Bolt, Nut & Screw Gauge

Hillman Bolt, Nut, and Screw Gauges are perfect to have handy in every tool box or garage, bringing an industrial-quality measurement tool to your workshop. This gauge tool measures diameter, length, and hex size across myriad fastener types, ensuring you have the right part for the job every time.

METRIC AND STANDARD: Capable of gauging measurements for both metric and standard fasteners
RULER LINES INCLUDED: Offers both a 6" ruler and 80mm metric ruler
CHECK SCREW LENGTHS REGARDLESS OF TYPE: Capable of gauging the length of flat, round, hex, pan, truss, and fillister head screws
SAE GRADES AND ISO CLASSES: Includes cap screw head markings for SAE & ISO strength comparisons
QUICKLY IDENTIFY HEX SIZE: Features spaces to check the hex size of bolts, nuts, or screws