M4S-PF-3
MODULAR SOLUTIONS STAINLESS STEEL FASTENER-M4 SQUARE NUT W/POSITION FIX M4 WITH SPRING SQUARE NUTS M4 – 0.7 COLOR STAINLESS STEEL MATERIAL: STAINLESS STEEL TECHNICAL 13MM X 13MM X 6MM THICK TACK WELDED LEAF SPRING INFO POSITION HOLDING NUT FOR THE 45 SERIES PROFILE CAN BE INSTALLED FROM THE TOP