SS8 Flat Washers M22 DIN 125 Form A/ISO 7089 - Zinc Plated Steel - Pack of 2

• Manufactured to DIN 125 Form A / ISO 7089, the flat, non-chamfered washer profile used throughout general engineering, construction and DIY assembly.
• Bright zinc plated carbon steel gives useful protection against surface rust for indoor use and moderate, sheltered outdoor exposure.
• 200 HV hardness class per ISO 7089, giving a firm, non-deforming bearing surface suitable for bolts, screws and nuts up to and including property class 8.8.
• Flat, wide bearing face spreads the clamping load of the fastener over a larger area, reducing point loading, surface marking and the risk of the joint working loose under vibration.
• Stocked across the complete metric range from M3 to M36, so the correct size is available from small electrical/instrument fixings up to heavy structural bolts.

Zinc plated flat washers manufactured to the dimensional requirements of DIN 125 Form A, the specification now superseded by the international standard ISO 7089. They provide a flat, wide bearing surface beneath the head of a bolt, screw or nut, spreading the clamping load evenly across the mating material and protecting it from surface damage, pull-through and stress concentration. Form A washers are the standard, non-chamfered flat profile used throughout general engineering, construction and DIY assembly. The zinc plated finish gives useful protection against surface rust and corrosion for indoor use and moderate, sheltered outdoor exposure, making these washers a cost-effective everyday alternative to stainless steel where a fully corrosion-proof washer is not required. Every size is manufactured to the 200 HV hardness class defined in ISO 7089, giving a firm, non-deforming bearing surface that keeps its shape under load and is suitable for use with hexagon bolts, screws and nuts up to and including property class 8.8. Stocked across the complete metric range from M3 up to M36, covering everything from light electronics and instrument work through to heavy structural and industrial fastenings. d1 is the inner (clearance hole) diameter, d2 is the outer diameter and h is the washer thickness, all manufactured to the DIN 125 Form A / ISO 7089 dimensional tolerances for a consistent, predictable fit across every size. Typical uses: general engineering and machine assembly; automotive and workshop repairs; construction and structural fixings, spreading clamping load across timber, steel or masonry; electrical enclosures, cabinets and panel building (M3-M6); furniture assembly, shelving and general joinery; and general DIY, maintenance and repair around the home, garage and workshop. Because the zinc plated finish suits indoor and moderate, sheltered outdoor use rather than continuous wet or marine exposure, a stainless steel washer to the same DIN 125 / ISO 7089 dimensions is the better choice for permanent weather, salt spray or washdown exposure. Fitting guidance: match the washer to the fastener's nominal thread diameter (an M8 washer for an M8 bolt) for a close, accurate fit without excessive play, and position it correctly under the bolt head or nut in the joint.