Round plug - SP series - Heyco - non-threaded / nylon / locking
Hardware Specialty | Heyco Dome Hole Plug, 1.02" Diameter, .45" H, White
HEYCO C2072 1" Liquid Tight Break-Thru Plug for a 1" Hole w/ 1.43 Head – Pro Speaker Parts
Amazon.com: Heyco 1687 SP-500 Black Shorty Hole Plug (Package of 250) : Industrial & Scientific
Heyco 2703 Multiple Locking Steps Hole Plug - ACCESS HARDWARE
PLUG (WITH RELEASE) 54 DP2093 HEYCO
3574VB Heyco | Mouser Italia
Heyco® Large Dome Plugs
2749 Heyco | Mouser Italia
Heyco® Connector Caps and Plugs
Heyco Spark Plug Socket 13/16", 3/8" Drive
Heyco 40170183 Glow Plug Socket 40-17" with Joint, Silver, 8 mm - Amazon.com
2763 Heyco | Mouser Italia
Heyco 2613 DP 312 Dome Plug 7.9mm - Black - Pack of 25 | Rapid Online
Heyco® Pry Out Plugs
Heyco BMW 21mm E23 E24 E28 E30 E31 E32 (E34 M20 Engine)Spark Plug Wrench Socket | eBay
Heyco® Insulation Plug
Heyco 2713 Locking Hole Plug, 1 inch Mounting Hole | Waytek
Heyco® Hole Plugs LabKit #3
Heyco® Double D Hole Plugs
Heyco® Nylon Liquid Tight Threaded Plugs
Heyco® Pry Out Plugs
HEYco-molded Liquid Tight Break-Thru Plugs - Heyco | Mouser
HEYCO® Locking Dome Hole Plugs Range | JET PRESS
Heyco 2703 DP 875 Dome Plug 22.2mm - Black - Pack of 25 | Rapid Online
Hardware Specialty | Heyco 1-1/2" Knockout Plug, 2.16" Diameter, .58" H, Silver-Gray
