Thank you for your inquiry regarding this item from Prime-Line Products. Note: This item is used on outswing doors only. Step 1: Locate bracket with large compression spring attached to the head jamb of door approximately 17" from hinged side of jamb. Pre-drill using 1/8" drill bit. Bracket should be angled slightly toward the hinged side and must be located on jamb so that it clears door when closed. Install with 2- #10 x 3/4" sheet metal screws. Step 2: Assemble remaining bracket to loose end of chain by inserting S-hook to bracket and chain link. Open door to 90 degrees and extend chain with bracket in place to meet top door rail; mark location of holes and pre-drill with 1/8" drill bit. Remove bracket from chain and install to door frame with 2- #10 x 3/4" sheet metal screws. Use any link necessary, when reattaching chain to bracket, that properly regulates door opening. Step 3: Close door and select link that hangs at bottom of loop. Attach one end of small (hold up) spring into link; place other end of spring thru nail head and nail into head jamb 1" from face of door. This hold-up spring should not be stretched over 1/4" when door is closed.
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