M4 Brass Form A Washers DIN125 (Pack of 20)

SOLID BRASS CONSTRUCTION – NON-MAGNETIC, CONDUCTIVE & NATURALLY CORROSION RESISTANT Manufactured from solid brass throughout — not brass-plated steel — delivering genuine corrosion resistance, electrical conductivity, and a warm decorative finish. Naturally non-magnetic and non-sparking, making these the correct choice for electrical, electronic, marine, antique restoration, and sensitive instrument applications where ferrous washers would create magnetic interference or corrosion issues over time. DIN 125 FORM A STANDARD – PRECISE 9mm OUTER DIAMETER FOR HEX NUTS & BOLTS Manufactured to the DIN 125 standard with a precise 4.3mm inner bore and 9mm outer diameter — the industry-standard "Form A" plain washer sized to match the bearing surface of standard DIN 934 hex nuts and DIN 933/931 hex bolts. The compact outer diameter is ideal where space is constrained and a wide-form penny washer would be unnecessary or won't fit. M4 x 9mm – PACK OF 20 SOLID BRASS FLAT WASHERS Each pack contains 20 individual M4 brass flat washers with 4.3mm inner bore, 9mm outer diameter, and 0.8mm thickness. Suitable for electrical terminal connections, lamp and chandelier assembly, antique furniture restoration, plumbing components, marine woodwork, decorative architectural metalwork, and any project requiring conductive non-magnetic brass washers in standard outer diameter. IDEAL FOR ELECTRICAL, ANTIQUE & MARINE APPLICATIONS Brass's natural conductivity makes these the correct choice for electrical terminal blocks, earth bonding connections, and grounding installations. The non-magnetic property is essential for instrument and electronic enclosures. Period-authentic appearance suits antique furniture restoration, vintage radios, longcase clocks, and traditional architectural metalwork. Marine-suitable for classic boats and yachts where corrosion-resistant brass hardware is required. UNIVERSAL M4 FIT – COMPATIBLE WITH ALL STANDARD M4 BOLTS & SCREWS With a precise 4.3mm inner bore, these Form A washers are universally compatible with all M4 metric bolts, machine screws, coach bolts, threaded rod, and brass wood screws across all major brands. Pairs perfectly with solid brass hex bolts, brass hex nuts, brass half nuts, brass dome nuts, and brass wing nuts for a complete brass fastening solution. Available from M3 through M10 — browse our store for the full brass washer range.