Quick Links are screw type and are made of 3/16 steel. Jaw opens 1/4" and the working load limit is up to 440 lbs. Availability: Usually ships the same business day. qlink$0.69, 12/$6.00, 100/$43.00 For orders or for a copy of our Free Catalog call 1-800-762-2706. Wholesale Catalog available also, Call for details. R-P Outdoors PO Box 1170 505 Polk Street Mansfield La. 71052