M4x20mm Carbon Steel Flat Knurled Head Fully Threaded Thumb Screw Bolt 16pcs

Key Features

• Product Name Knurled Thumb Screw; Package Content 16pcs x Knurled Thumb Screw
• Main Color Silver Blue; Material Carbon Steel
• Weight 103g; Thread Size M4 x 20mm/ 0.16" x 0.8" (D*L)
• Total Length 28mm / 1.1"; Thread Pitch 0.7mm
• Coating Zinc Plated; Knurled Head Size 12 x 4mm/0.47" x 0.16"(D*T)

Product Description

Round thumb screw with extra step flat knurled head style.Knurled head provides extra grip for manual tightening. Usually found on thumb screws, a knurled surface on the head gives a better gripping surface, making it easier to tighten or loosen fasteners manually. Thumb screws are designed to be tightened and loosened by hand. Tools not necessary for tightening or looseningKnurled Thumb Screws are installed with your fingers and are used to hold light covers in place and other ornamental products.

Specifications