Seller: stlhardware (4,054) 99.9%, Location: Saint Louis, Missouri, Ships to: US & many other countries, Item: 162283326357 Qty. 25 - vintage square head machine bolts 1/4-20 x 31/2" with square nuts - steel plain finish - thread length is 1" some surface rust on the threads and the nuts - Sterling Bolt Co., Chicago, Illinois - Box is not included the machine bolts will come packaged in a zip lock bag - the box was shown for information only. New old stock from an oldtime hardware store. Made in the USA Condition: New old stock - surface rust on some of the threads and nuts - Box is not included showed for information purpose only- machine bolts and nuts will come in a zip lock baggie, Fastener Type: Machine Bolt with Nut, Drive Type: Wrench, Head Style: Square, Coating: Plain, Grade: unknown, Material: Steel, Thread Diameter (in.): 1/4-20, Length (in.): 3 1/2", Brand: Sterling Bolt Company, Model: Square Head Machine Bolt, MPN: 1/4-20 x 3 1/2SHMB, Quantity: 25, Country/Region of Manufacture: United States, Thread Length: 1"