The Hillman Group · Paulin
Paulin Papco 730-005 Metric Flat Washer
M5, 5.3 mm ID x 11 mm OD, 1 mm THK, Carbon Steel
- Stock #
- 1F6699D7
- MFG Part #
- 730-005
- Manufacturer
- The Hillman Group
Flat washers are essential for adding resistance to bolts or screws, preventing them from digging into surfaces and causing damage. Positioned behind a nut or screw head, they help distribute the load evenly and prevent material buckling or screw pull-through. Washer sizes correspond to the diameter of the bolt or screw they accompany and should be properly matched to ensure an effective fit.
When choosing a washer, its important to select one that complements the finish of the fasteners in use, as differing finishes can lead to chemical reactions that weaken the fasteners over time.
- The zinc coating applied serves as a protective barrier against corrosion resistance
- They provide a smooth bearing surface and protect the underlying surface from being damaged by the fastener
- They are class 200HV and are used with class 8.8 screws, bolts and class 8 nuts

