The Ellis MFG Twist-Lock Guardrail Brackets make adding fall protection to aluminum stringers easy. Twist onto aluminum stringers or joists which measure 3.25 inches across the top flange and tack into place. Add 4x4 lumber (TGB-L) or steel post (TGB-M) as vertical members and 2x4s for railing. Customize the height and number of rails to match any OSHA requirement. The Twist-Lock Guardrail Brackets are the most versatile guardrail system available for aluminum stringers and beams.
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