Description:
This set of flat penny washers offers practical hardware for everyday repairs and assembly, combining a range of sizes with corrosion-resistant construction to help secure bolts and screws in mechanical and domestic projects. With multiple diameters included, this assortment suits tasks from light furniture fixing to moderate machinery fastening, giving flexibility when you need a reliable metal spacer and seal.
Key Points
The pack contains 120 flat washers in five sizes to cover common bolt diameters. They are made of 304 stainless steel, which the manufacturer states is rustproof and durable, making them suitable for environments where basic corrosion resistance is required. These washers are useful for reducing loosening caused by vibration and for improving load distribution under nuts and bolt heads.
Technical Specifications
Name
: HOLMOL Flat Penny Washers 120 PCS- Material: 304 stainless steel
- Sizes included: M4 x 12mm, M5 x 15mm, M6 x 20mm, M8 x 25mm, M10 x 30mm
- Quantity breakdown: 30 × M4, 30 × M5, 30 × M6, 20 × M8, 10 × M10
- Finish: smooth surface
Benefits
These flat metal washers help spread load across a larger surface, which can protect softer materials such as wood or plated surfaces from damage when tightening fasteners. They also assist with sealing around joints to limit leakage in non-pressurised applications and reduce wear between rotating parts. The assortment format eliminates the need to buy sizes individually and keeps a selection to hand for varied maintenance jobs. ⚙️
Usage Recommendations
For typical installation, place a washer under the nut or bolt head to increase contact area and tighten to the torque appropriate for the bolt grade. In vibrating environments, combine these washers with lock washers or thread-locking compounds where higher resistance to loosening is necessary, keeping in mind that the flat washers themselves primarily aid load distribution rather than providing mechanical locking. Consider that for marine or highly corrosive conditions a higher grade stainless steel may be advisable according to the manufacturer. 🔩 😊










