Special Offers
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Hex Head Self Driller DIN 7504-K A2 Stainless Steel (6.3 X 25)
1000+ in stockRRP From £8.20 -
Cup Square Bolt DIN 603 A2 Stainless Steel (M6 X 40)
1000+ in stockRRP From £5.70 -
Nylon Insert Nut DIN 985 A2 Stainless Steel (M8)
1000+ in stockRRP From £2.88 -
Socket Set Flat Point Screw ISO 4026 A2 Stainless Steel (M6 X 8)
1000+ in stockRRP From £3.00
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Rect Sect Spring Washer DIN 127-B A4 Stainless Steel (M12)
1000+ in stockM12 spring washer in A4 stainless steel to DIN 127-B. Exerts continuous axial spring load on the nut face once tightened, resisting loosening under vibration and dynamic loading without thread locking compound. A4 (316) marine grade...RRP From £3.60RRP From £3.60 -
Rect Sect Spring Washer DIN 127-B A4 Stainless Steel (M8)
1000+ in stockM8 spring washer in A4 stainless steel to DIN 127-B. Exerts continuous axial spring load on the nut face once tightened, resisting loosening under vibration and dynamic loading without thread locking compound. A4 (316) marine grade...RRP From £2.26RRP From £2.26 -
Rect Sect Spring Washer DIN 127-B A4 Stainless Steel (M6)
1000+ in stockM6 spring washer in A4 stainless steel to DIN 127-B. Exerts continuous axial spring load on the nut face once tightened, resisting loosening under vibration and dynamic loading without thread locking compound. A4 (316) marine grade...RRP From £2.10RRP From £2.10 -
Flat Washer, Form C BS4320-C A4 Stainless Steel (M12)
1000+ in stockM12 flat washer (Form C, large OD) in A4 stainless steel (316 marine grade) to BS4320-C. The large outer diameter spreads load over a wider area than a standard Form A washer - useful for oversized...RRP From £3.60RRP From £3.60 -
Flat Washer, Form C BS4320-C A4 Stainless Steel (M8)
1000+ in stockM8 flat washer (Form C, large OD) in A4 stainless steel (316 marine grade) to BS4320-C. The large outer diameter spreads load over a wider area than a standard Form A washer - useful for oversized...RRP From £2.15RRP From £2.15 -
Flat Washer, Form C BS4320-C A4 Stainless Steel (M6)
1000+ in stockM6 flat washer (Form C, large OD) in A4 stainless steel (316 marine grade) to BS4320-C. The large outer diameter spreads load over a wider area than a standard Form A washer - useful for oversized...RRP From £1.86RRP From £1.86 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M16)
1000+ in stockM16 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 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M12)
1000+ in stockM12 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 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M10)
1000+ in stockM10 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 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M8)
1000+ in stockM8 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 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M5)
1000+ in stockM5 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 -
Flat Washer, Form A DIN 125-A A4 Stainless Steel (M4)
1000+ in stockM4 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 -
Dome Nut DIN 1587 A4 Stainless Steel (M10)
1000+ in stockM10 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 -
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M12)
1000+ in stockM12 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 -
Nylon Insert Nut DIN 985 A4-80 A4 Stainless Steel (M10)
1000+ in stockM10 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 -
Nylon Insert Nut DIN 985 A4 Stainless Steel (M8)
1000+ in stockM8 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 -
Nylon Insert Nut DIN 985 A4 Stainless Steel (M6)
1000+ in stockM6 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 -
Nylon Insert Nut DIN 985 A4 Stainless Steel (M5)
1000+ in stockM5 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 -
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M16)
1000+ in stockM16 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 -
Hexagon Full Nut DIN 934 A4-80 A4 Stainless Steel (M12)
1000+ in stockM12 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 -
Hex Socket Countersunk Screw ISO 10642 A4 Stainless Steel (M8 X 25)
1000+ in stockM8 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 -
Hex Socket Countersunk Screw ISO 10642 A4-70 A4 Stainless Steel (M6 X 30)
1000+ in stockM6 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 -
Hex Socket Countersunk Screw ISO 10642 A4 Stainless Steel (M6 X 20)
1000+ in stockM6 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 -
Hex Socket Countersunk Screw ISO 10642 A4-70 A4 Stainless Steel (M5 X 25)
1000+ in stockM5 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 -
Hexagon Socket Button Screw ISO 7380-1 A4 Stainless Steel (M6 X 20)
1000+ in stockM6 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
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 on orders over £50.