2x Scuba Dive BC BCD Backplate & Harness Book Screw Mounting Bolt 3/4" Diameter

2X Book Screw Sets 

With O-Rings for Secure Grip 

15mm, 21mm, 27mm 

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2 Sets premium marine grade stainless steel scuba diving back plate complete assembly book screws for backplate pad. 

Lightweight, strong, sturdy, high strength and corrosion resistant in saltwater. 

Used to attach equipment accessories such as mesh bag with grommet on to the backplate. 

Universal size fits the standard holes on any standard backplate. 

Specifications: 

Material: Stainless steel 

Size: 5/16" Stem - 3/4" Heads 

Height: Approx. 1.8 cm/0.7inch 

Package Includes: 

2 Complete Sets Scuba Diving Backplate Book Screws + O-rings