Choose from our selection of 4-40 taps, including general purpose taps, tap sets, and more. Same and Next Day Delivery.

Choose from our selection of 4-40 dies, including external thread cutting, external thread repairing, and more. Same and Next Day Delivery.

Choose from our selection of 4-40 helicoils, including stainless steel helical inserts, taps for helical inserts, and more. Same and Next Day Delivery.

Choose from our selection of 4-40 drill bits, including over 14,100 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of tap extractors, tap extractor sets, drill out tap remover sets, and more. Same and Next Day Delivery.

Choose from our selection of 4-40 inserts, including threaded inserts, nuts, and more. ... For Tap Thread ...

Tap Extensions with Knurled Ring—Tap extensions with a knurled ring adjust to fit a broader range of tap sizes than other extensions. Hex Key— Tap extensions with an included hex key …

Remove chips as you cut slightly oversized threads that create space for plating or compensate for shrink from heat treating. These taps have a pitch diameter that’s 0.0055" larger than …

Taps have a square shank for compatibility with tap wrenches and tap holders for drill presses and milling machines. With a plug chamfer, they have 3-5 chamfered cutting threads, so …

Choose from our selection of 4-40 screws, including socket head screws, rounded head screws, and more. Same and Next Day Delivery.