The Bolt Up Family

USD

The Bolt Up is a family of bolt-on Mounts for the VOLTRA I. Each one attaches to square tubes up to 3" wide with four 5/16"-18 bolts and holds one DIY Dock. Pick The Bolt Up for straps, flat plate and tubing, or The Bolt Up Fixed 60° for a fixed 60° Dock plate built for 2:1 doubling.

	The Bolt Up	The Bolt Up Fixed 60°
Best for	Square tubing, flat plate, or a strap around a post, beam, or tube (strap not included)	A fixed 60° DIY Dock plate with 2:1 doubling
Options	Bolt Length: 1", 3", 4" Dock: Mount only, With DIY Dock Nut plate: 2", 3"	Bolt Length: 3", 4" Dock: Mount only, With DIY Dock
Price	$95 (1"), $97 (3"), $98 (4"); With DIY Dock +$35 ($130–$133); same price for either nut plate	$158 (3"), $159 (4"); With DIY Dock +$35 ($193–$194)
Fit	Square tubes from 1.5" up to 3" wide; works with straps (use 1" bolts)	Square tubes from 2" up to 3" wide
Dock angle	0° (from the face of the plate)	Fixed 60° (does not adjust)
2:1 doubling	Not listed	Yes, with a doubling attachment point
Bolts	Four 5/16"-18 bolts: 1" (strap, belt, or portable attachment under 7/32" / 5.5 mm), 3" (tubes up to 2"), 4" (tubes 2" to 3")	Four 5/16"-18 bolts: 3" (tubes up to 2"), 4" (tubes 2" to 3")
Nut plate	Two separate nut plates, each with 2 holes; 2" or 3" (your choice, one size ships)	Single nut plate with 4 holes, 0.313" A36 steel, tapped 5/16-18
Also included	Four flat washers, four split lock washers, chafe pad	Four flat washers, four split lock washers, chafe pad
Material	5/16" (0.313") A36 mild steel, gloss black powder coat	5/16" (0.313") A36 steel, CNC laser-cut and laser-welded
Dimensions (H × L × W)	Not listed	7" × 8-1/4" × 4-1/2"
Chafe pad	3.5 mm TPU (Shore 68D)	Included (spec not listed)
Tools needed	1/4" Allen wrench (not included)	1/4" Allen wrench (not included)
Add-on	Bolt Up Extra Bolt Set: 1" $8, 3" $10, 4" $12	Bolt Up Extra Bolt Set: 3" $10, 4" $12