UNF 3/8″ Spring Washer, BZP, square section, heavy duty. Pk 25.

Our Price: £1.50 inc. VAT
£1.25 exc. VAT

25 in stock

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Spring washers are locking washers that are used when there is a need to prevent a fastener from loosening as a result of vibration. They are also often called split lock or split ring washers.

A spring washer has a split in the washer section that when tightened each side of the split bites into the nut and the mounting surface. This “bite” prevents any anti-clockwise rotation from occurring under vibration.

The term “square section” refers to the end section of the split in the spring washer.