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Special Offers
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Vendor: Simfix
A4 Casted Eye Bolt Stainless Steel (M8)
RRP From £8.39 -
Vendor: Simfix
Rect Sect Spring Washer DIN 127-B A4 A4 Stainless Steel (M10)
RRP From £2.70 -
Vendor: Simfix
Hexagon Head Set Screw DIN 933 A4-70 A4 Stainless Steel (M8 X 20)
RRP From £6.68 -
Vendor: Simfix
Hexagon Head Set Screw DIN 933 A4-70 A4 Stainless Steel (M6 X 40)
RRP From £6.17
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Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 A4 Stainless Steel (M16)
M16 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £5.81RRP From £5.81 -
Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 A4 Stainless Steel (M12)
M12 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £4.36RRP From £4.36 -
Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 A4 Stainless Steel (M10)
M10 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £3.07RRP From £3.07 -
Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M8)
M8 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £2.32RRP From £2.32 -
Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 A4 Stainless Steel (M5)
M5 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £2.22RRP From £2.22 -
Vendor: Simfix
Flat Washer, Form A DIN 125-A A4 A4 Stainless Steel (M4)
M4 flat washer in A4 stainless steel (316 marine grade) to DIN 125-A. Distributes clamping load under bolt heads and nuts, protecting timber, aluminium, and coated substrates from crushing or marking. A4 (316) resists saltwater and...RRP From £2.15RRP From £2.15 -
Vendor: Simfix
Dome Nut DIN 1587 A4 A4 Stainless Steel (M10)
M10 dome nut in A4 stainless steel to DIN 1587. The domed cap covers the exposed end of a bolt thread for a safe, finished appearance - used on outdoor furniture, signage, architectural fixings, and play...RRP From £7.20RRP From £7.20 -
Vendor: Simfix
Dome Nut DIN 1587 A4 A4 Stainless Steel (M8)
M8 dome nut in A4 stainless steel to DIN 1587. The domed cap covers the exposed end of a bolt thread for a safe, finished appearance - used on outdoor furniture, signage, architectural fixings, and play...RRP From £4.80RRP From £4.80 -
Vendor: Simfix
Dome Nut DIN 1587 A4 A4 Stainless Steel (M6)
M6 dome nut in A4 stainless steel to DIN 1587. The domed cap covers the exposed end of a bolt thread for a safe, finished appearance - used on outdoor furniture, signage, architectural fixings, and play...RRP From £4.20RRP From £4.20 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M12)
M12 nyloc nut in A4 marine grade stainless steel to DIN 985. The nylon insert grips the bolt thread under vibration and dynamic loading, resisting loosening without thread locking compound - and re-usable after removal. A4...RRP From £15.60RRP From £15.60 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M10)
M10 nyloc nut in A4 marine grade stainless steel to DIN 985. The nylon insert grips the bolt thread under vibration and dynamic loading, resisting loosening without thread locking compound - and re-usable after removal. A4...RRP From £13.20RRP From £13.20 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M8)
M8 nyloc nut in A4 marine grade stainless steel to DIN 985. The nylon insert grips the bolt thread under vibration and dynamic loading, resisting loosening without thread locking compound - and re-usable after removal. A4...RRP From £8.40RRP From £8.40 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M6)
M6 nyloc nut in A4 marine grade stainless steel to DIN 985. The nylon insert grips the bolt thread under vibration and dynamic loading, resisting loosening without thread locking compound - and re-usable after removal. A4...RRP From £6.72RRP From £6.72 -
Vendor: Simfix
Nylon Insert Nut DIN 985 A4 Stainless Steel (M5)
M5 nyloc nut in A4 marins grade stainless steel to DIN 985. The nylon insert grips the bolt thread under vibration and dynamic loading, resisting loosening without thread locking compound - and re-usable after removal. A4...RRP From £5.28RRP From £5.28 -
Vendor: Simfix
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M16)
M16 hex nut in A4 marine grade stainless steel to DIN 934. Full-height hexagon form, compatible with all M16 bolts, machine screws, and threaded rod to metric coarse pitch. Suitable for general indoor and outdoor assemblies,...RRP From £22.80RRP From £22.80 -
Vendor: Simfix
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M12)
M12 hex nut in A4 marine grade stainless steel to DIN 934. Full-height hexagon form, compatible with all M12 bolts, machine screws, and threaded rod to metric coarse pitch. Suitable for general indoor and outdoor assemblies,...RRP From £14.40RRP From £14.40 -
Vendor: Simfix
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M6)
M6 hex nut in A4 marine grade stainless steel to DIN 934. Full-height hexagon form, compatible with all M6 bolts, machine screws, and threaded rod to metric coarse pitch. Suitable for general indoor and outdoor assemblies,...RRP From £4.80RRP From £4.80 -
Vendor: Simfix
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M5)
M5 hex nut in A4 marine grade stainless steel to DIN 934. Full-height hexagon form, compatible with all M5 bolts, machine screws, and threaded rod to metric coarse pitch. Suitable for general indoor and outdoor assemblies,...RRP From £4.32RRP From £4.32 -
Vendor: Simfix
Hexagon Full Nut DIN 934 A4 Stainless Steel (M4)
M4 hex nut in A4 marine grade stainless steel to DIN 934. Full-height hexagon form, compatible with all M4 bolts, machine screws, and threaded rod to metric coarse pitch. Suitable for general indoor and outdoor assemblies,...RRP From £3.60RRP From £3.60 -
Vendor: Simfix
Hex Socket Countersunk Screw ISO 10642 A4 A4 Stainless Steel (M8 X 25)
M8 x 25mm countersunk socket screw in A4 marine grade stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface...RRP From £7.94RRP From £7.94 -
Vendor: Simfix
Hex Socket Countersunk Screw ISO 10642 A4-070 A4 Stainless Steel (M6 X 30)
M6 x 30mm countersunk socket screw in A4 marine grade stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface...RRP From £5.10RRP From £5.10 -
Vendor: Simfix
Hex Socket Countersunk Screw ISO 10642 A4 A4 Stainless Steel (M6 X 20)
M6 x 20mm countersunk socket screw in A4 marine grade stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface...RRP From £4.80RRP From £4.80 -
Vendor: Simfix
Hex Socket Countersunk Screw ISO 10642 A4-070 A4 Stainless Steel (M5 X 25)
M5 x 25mm countersunk socket screw in A4 marine grade stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface...RRP From £4.12RRP From £4.12 -
Vendor: Simfix
Hexagon Socket Button Screw ISO 7380-1 A4 Stainless Steel (M6 X 20)
M6 x 20mm button head socket screw in A4 marine grade stainless steel to ISO 7380-1. The wide, low-profile dome head distributes load across a larger bearing surface than a cap screw, ideal for furniture, signage,...RRP From £4.13RRP From £4.13 -
Vendor: Simfix
Hexagon Socket Button Screw ISO 7380-1 A4 Stainless Steel (M6 X 16)
M6 x 16mm button head socket screw in A4 marine grade stainless steel to ISO 7380-1. The wide, low-profile dome head distributes load across a larger bearing surface than a cap screw, ideal for furniture, signage,...RRP From £4.03RRP From £4.03
A4 (316) marine grade stainless steel fasteners for the environments that break A2 (304): coastal fencing, jetties, boat fittings, pool and spa hardware, and any structure exposed to salt spray or salt-laden air.
A4 (316) contains 2 - 3% molybdenum, which prevents the pitting corrosion that eats through A2 (304) in chloride-rich environments. Hex bolts (DIN 931 / DIN 933), socket cap screws (ISO 4762), machine screws, nyloc nuts (DIN 985), dome nuts (DIN 1587) and flat washers - all A4 (316), all stocked.
DIY and Trade packs available, free next-day UK delivery.