100 PACK M12 x 1/2 Inch Acme Screw with Captive Washer - Zinc Plated Fixings Overview: Zinc plated BS 7976/6903/B acme screw with captive washer. Supplied in resealable bag. Features: Acme screw with captive washer zinc plated. Supplied in resealable bag. BS 7976/6903/B. Pack of 50. Specification: Net Weight - 0.23kg Pack Qty - 50 Size - #12 x 1/2" Further Information: We sell a wide variety of tools & workshop equipment for both the DIY and Professional markets. With well over 10,000 lines of equipment suiting all jobs big or small, our online store has it all. If you can’t quite find what you are looking for, please feel free to contact us and we’ll be more than happy to help. Alias: ys02788