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Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M8)
RRP From £2.88 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M12)
RRP From £15.60 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M10)
RRP From £13.20 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M8)
RRP From £8.40 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M6)
RRP From £6.72 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M5)
RRP From £5.28 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M12)
RRP From £5.76 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M10)
RRP From £4.08 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M6)
RRP From £1.92 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M5)
RRP From £1.68 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M4)
RRP From £1.55 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A2 Stainless Steel (M3)
RRP From £1.55
Nylon insert lock nuts (nyloc nuts) to DIN 985 in A2 (304) and A4 (316) stainless steel - the standard vibration-resistant nut for joints that must stay tight through cyclic loading.
A soft nylon ring bonded into the top of the nut deforms around the bolt thread as the nut is tightened, providing a friction grip that resists loosening under vibration, thermal cycling and repeated impact. Rated for one-time use in most spec sheets - the nylon insert wears each time the nut is removed and re-fitted.
A2 (304) for indoor and general outdoor use; A4 (316) for marine, coastal and salt-exposed engineering. Trade packs and DIY packs, next-day UK delivery before 4PM.