Sealey Nut & Bolt Checker

Accommodates 22 Metric sizes for common nuts, bolts and screws.
Designed to accurately identify and measure threads, ensuring correct fastener selection.
Manufactured from durable alloy for reliable, long-term use.
Compact and lightweight for easy transport and storage.
Features easy-to-read markings with male and female versions of each size clearly labelled.
Metric Sizes: M3-0.5, M4-0.7, M5-0.8, M6-1, M7-1, M8-1, M8-1.25, M10-1, M10-1.25, M10-1.5, M12-1, M12-1.25, M12-1.5, M12-1.75, M14-1.5, M14-2, M16-1.5, M16-2, M20-1.5, M20-2.5, M24-2, M24-3.
Model No. AK29M