Dct 5 Star Knobs Kit - 1/4In-20 Threaded Knob, Bolt, Clamping Jig, 4 Pack Product Features TIGHTEN ADJUST JIGS, FIXTURES, FENCES: The DCT | 5 Star Knob T Track Knobs Kit with Bolts Washers 4-Pack is a package of screw-on clamping knobs that can be used on your existing saw fence, drill press, lathe, routing jig, fixture, feather board, or anywhere else that a 1/4-Inch-20 internal thread is required; Many 3/4-inch wide x 3/8-inch deep (19.1mm x 9.5mm) T-tracks will not only accept this knob set but will allow you to use the 1/4-inch T-bolts PERFECT SIZE: Knobs have a 2-inch diameter and 1-inch height (5.1cm x 2.5cm); T track knob threading has 1/4-inch (6.4mm) diameter and 20 threads per inch (if you turn a nut 20 revolutions it will move 1 inch); Bolts and washers are 1/4?-20 x 1-1/2-inch; Works with any material that is less or equal to 1-inch in thickness or any T-track that accepts standard 1/4-inch bolt heads EASY TO USE: Insert the bolt into the T-Slot head down with the screw facing upwards, place the washer on the threaded bolt facing upwards, thread the T knob onto the bolt, then lock the entire unit in place on your T-track; Ergonomic design of this plastic knob set allows for easy adjustment and tightening with maximum control and agility without the use of additional tools BUILT TO LAST: T knobs package includes plastic knobs that are constructed from polypropylene plastic with molded-in brass insert that will not strip; Bolts and washers constructed from steel PACKAGE CONTENTS: Tightening knob kit includes (4) T track knobs (1/4?-20 threaded knobs), (4) bolts, and (4) washers for your convenience; This T bolts and knobs pack is for use with a hold down clamp (sold separately) Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!