Special Offers
-
6.3 X 25 Hex Head Self Drilling Screw DIN 7504-K A2 Stainless Steel
In stockRRP From £11.21 -
M8 Flat Washer, Form A DIN 125-A A2 Stainless Steel
In stockRRP From £2.69 -
M8 Nylon Insert Nut DIN 985 A2 Stainless Steel
In stockRRP From £3.23 -
M10 Hexagon Full Nut DIN 934 A2 Stainless Steel
In stockRRP From £3.99
-
7/8" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 7/8" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £26.67RRP From £26.67 -
7/16" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 7/16" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £20.50RRP From £20.50 -
5/8" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 5/8" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £29.84RRP From £29.84 -
5/8" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 5/8" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £13.50RRP From £13.50 -
5/16" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 5/16" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies a split washer with a rectangular section and offset ends, for maintaining tension under vibration. The split ring...RRP From £19.28RRP From £19.28 -
5/16" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 5/16" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £10.49RRP From £10.49 -
3/8" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
Out of stockThis 3/8" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £3.76RRP From £3.76 -
3/4" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 3/4" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £24.04RRP From £24.04 -
3/8" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 3/8" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies a split washer with a rectangular section and offset ends, for maintaining tension under vibration. The split ring...RRP From £21.78RRP From £21.78 -
3/4" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 3/4" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £33.81RRP From £33.81 -
3/16" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 3/16" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £6.73RRP From £6.73 -
3/32" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 3/32" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £16.60RRP From £16.60 -
1/4" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 1/4" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £17.76RRP From £17.76 -
1/2" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
Out of stockThis 1/2" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £4.29RRP From £4.29 -
1/4" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
Out of stockThis 1/4" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £10.06RRP From £10.06 -
1/2" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
In stockThis 1/2" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies a split washer with a rectangular section and offset ends, for maintaining tension under vibration. The split ring...RRP From £26.42RRP From £26.42 -
1" Rect Sect Spring Washer ANSI/ASME B18.21.1 Stainless Steel
In stockThis 1" spring washer is manufactured to ANSI/ASME B18.21.1 in stainless steel. ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat as the joint...RRP From £31.41RRP From £31.41 -
1" Rect Sect Spring Washer ANSI/ASME B18.21.1 A4 Stainless Steel
Out of stockThis 1" spring washer is manufactured to ANSI/ASME B18.21.1 in A4 stainless steel (316 grade). ANSI/ASME B18.21.1 specifies the imperial series of helical spring lock washers, for maintaining tension under vibration. The split ring compresses flat...RRP From £35.10RRP From £35.10 -
M12 Rect Sect Spring Washer DIN 127-B A4 Stainless Steel
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 £8.69RRP From £8.69 -
M8 Rect Sect Spring Washer DIN 127-B A4 Stainless Steel
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 £7.17RRP From £7.17 -
M6 Rect Sect Spring Washer DIN 127-B A4 Stainless Steel
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 £4.70RRP From £4.70 -
M6 Rect Sect Spring Washer DIN 127-B 1 Stainless Steel
In stockM6 spring washer in A2 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. A2 (304 grade) gives...RRP From £3.91RRP From £3.91 -
M5 Rect Sect Spring Washer DIN 127-B 1 Stainless Steel
In stockM5 spring washer in A2 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. A2 (304 grade) gives...RRP From £4.99RRP From £4.99 -
M4 Rect Sect Spring Washer DIN 127-B 1 Stainless Steel
In stockM4 spring washer in A2 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. A2 (304 grade) gives...RRP From £6.67RRP From £6.67
Stainless steel spring washers from M2 to M42, plus imperial inch and No. gauge sizes.
- Rectangular section (DIN 127-B): the classic split spring washer.
- Square section (DIN 7980): a heavier section, often used under socket cap screws.
- Curved spring washers (DIN 128-A).
- Conical spring washers (DIN 6796) for heavily loaded bolted joints.
Most are A4 (316) or listed as stainless steel, with a smaller number in A2 (304), so check the grade on each product page. A spring washer gives some resistance to loosening under light vibration; for joints that see heavy vibration, a nyloc nut is more reliable.
Sizes, grades and pack quantities vary by product type. Check the individual product listing for the exact specification and current availability.