An A2 Stainless Steel Cup Square Bolt and Nut. It has a domed head with a square anti spin shoulder mainly used for clamping timber or attaching ironmongery to timber.
Diameter: M12
Pitch: 1.75mm
Length: 100mm
Thread Length: 91.25mm
Head Diameter: 30.65mm
Head Thickness: 6.95mm
Square Size (A/F): 12.70mm
Square Thickness: 8.75mm
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