This website is owned and operated by Portland Bolt and Manufacturing Company. The intent of this site is to provide engineers, contractors, fabricators, and original equipment manufacturers with in-depth, technical information pertaining to the ASTM F3125 specification. Please contact us if you have questions, require additional information, need a price quote, or would like to place an order. For more information regarding Portland Bolt's manufacturing capabilities and full product line, visit
www.portlandbolt.com.