Seller: stlhardware (4,038) 99.9% , Location: Saint Louis, Missouri, Ships to: US & many other countries, Item: 391636328933 Qty. 20 - vintage square head machine bolts 1/4-20 x 4 1/2" with square nuts - zinc plated finish - thread length is 7/8" - the machine bolts and nuts will come packaged in a zip lock bag - New old stock from an oldtime hardware store. Condition: New old stock - no packaging - machine bolts and nuts will come in a zip lock baggie, Fastener Type: Machine Bolt with Nut, Drive Type: Wrench, Head Style: Square, Coating: Zinc Plated, Grade: unknown, Material: Steel, Thread Diameter (in.): 1/4-20, Length (in.): 4 1/2", Brand: Unbranded, Model: Square Head Machine Bolt w/Square Nut, MPN: Does not apply, Quantity: 30, Country/Region of Manufacture: Unknown, Thread Length: 7/8"