Contact lock washer NF E25-511 Material : spring steel Finishing : Galvanized Cr3 Size M3-M20 Special features contact-lock washers type medium: - suitable for use simultaneously as lock washer and plain washer with oversize or elongated holes - no damage to surface, exceptional locking action and high elasticity to compensate play or setting - excellent contact in electrical appliances avoiding overheating - applicable for bolts with a property class ≤ 10.9 ฝ่ายขายติดต่อ เอก 0818219172 , อรุณลักษณ์ 0819126715, สุพัฒตรา 0818353359 สำนักงานโทร 027489730-1, 027489800, 027489819 Fax 027489852 ID Line : bmpcek ID Line : 0818353359 ID Line : 0819126715 www.bmpc.co.th, sales@bmpc.co.th