5/16" × 32 TPI Internal (Nut) Thread Specifications

ASME Unified National Extra Fine (UNEF) per ASME B1.1 — nut/tapped hole dimensions

Applications

Automotive batteries
Garden equipment
Light structural work

Technical Specifications

Parameter	Notation	Value
Threads Per Inch	n	32.0 TPI
Pitch	P	0.0313 in
Major Diameter (MinRef)	D_min	0.3125 in
Pitch Diameter	D2	0.2922 in
Minor Diameter	D1	0.2790 in
Tolerance Class	Class	2B
Thread Height	H	0.0271 in
Thread Depth	h3	0.0192 in
Crest Width	f	0.0078 in
Root Width	r	0.0039 in
Tap Drill	Drill	0.2813 in

Related Thread Sizes

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