M16 Half Nuts (Thin Lock Nuts) Stainless Steel A2

These M16 A2 stainless steel half nuts are a thin lock nut used as a jam nut, tightened against a standard nut to help resist loosening on M16 assemblies where overall height is limited.

• Also known as a thin lock nut or jam nut (locks by tightening against a standard nut)
• Manufacturing standard: DIN 439 (thin pattern)
• Thread size: M16
• Thread pitch: 2.0mm (metric coarse)
• Spanner size (across flats / J): 24mm (tolerance +0/-0.33mm)
• Nut thickness (T): 8mm (tolerance +0/-0.58mm)
• Width across points: 27.71mm
• Chamfer angle: 15 to 30 degrees
• Material: A2 stainless steel, natural finish

Where M16 half nuts are used

Often used with a standard nut to lock off M16 joints on fabricated supports and maintenance fixings when clearance behind the work is tight. Tighten as a jam nut for a straightforward mechanical lock.

See our full range of

Why buy from Fixabolt

Trade-focused supply with clear listings and reliable UK delivery.