The perfect tool accessory for any flooring, wood or upholstery job, these Spec Ops Heavy Duty Staples, 3/8 inch are compatible with all Spec Ops Staple Guns and Hammer Tackers. These, *T50 style, galvanized steel standard staples were developed for optimum performance in most heavy duty needs. Manufactured with galvanized steel, these staples are also resistant to rust. Constructed from superior high carbon wire to reduce buckling and jamming, these finely-honed staples deliver maximum penetration and rapid firing to get any job done securely and quickly. With each Spec Ops Tools purchase made, We support our nation's heroes by donating 3% of proceeds to veteran and first responder causes. *T50 is a registered trademark of Arrow Fastener company