Petzl Bolt Steel Bolts - 20 Pack 12 mm P36GA 12. Specifications for Petzl Bolt Steel Bolts - 20 Pack: Manufacturer: Petzl Color: Stainless Steel Weight: 80 g Diameter: 12 mm Package Contents: Petzl Bolt Steel Bolts - 20 Pack Petzl P36GA 12: Bolt...