Check the listing for details. Winchester Model 12 Trigger Guard Screw - 1 - Winchester Part # 13112. Color: Blue, Condition: New other (see details). Listed at 10.89 USD. Winchester Model 12 Trigger Guard Screw: Reproduction screw made to the exact spec of the original. Thread size is 10 - 36 and overall length is 0.641 inches. See my other listings for other M12 screws. Winchester Part # 13112 Your bid is for 1 Screw and Shipping is Free!!Collectors Special: Buy 3 Screws and get a 4th Screw free! Select a quantity of 3 before hitting the Buy it Now. Your 4th Screw will be included when your order ships. Thanks for looking and please email me with any questions or if you need more pictures. Buyer is responsible for asking all pertinent questions in advance of bidding/purchase. All items are described to the best of my ability. It is the purchaser's responsibility to be absolutely certain that any gun parts purchased from tdail3 are installed correctly and fitted properly, and that any work performed by you or others to be safe and correct. It is recommended that only a fully qualified gunsmith perform any repair work.