{"id":19694,"date":"2025-05-05T13:31:03","date_gmt":"2025-05-05T13:31:03","guid":{"rendered":"https:\/\/stainlessbolts.com\/gemstar\/?page_id=19694"},"modified":"2026-05-27T05:11:18","modified_gmt":"2026-05-27T05:11:18","slug":"carriage-bolt","status":"publish","type":"page","link":"https:\/\/stainlessbolts.com\/gemstar\/carriage-bolt\/","title":{"rendered":"Carriage Bolt"},"content":{"rendered":"\t\t
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Stainless Steel Carriage Bolt - Grade 202, 304, 316 - A2, A2-70<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A Carriage Bolt (also called a Round Head Square Neck Bolt) is a type of fastener commonly used in wood-to-wood or wood-to-metal applications. It is known for its smooth, rounded head and square neck that prevents the bolt from turning once installed.<\/p><\/div>\t\t\n\t<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t

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DIN 603 <\/div><\/td>\n <\/tr>\n
Size<\/div>
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Length<\/div><\/td>\n <\/tr>\n
F\/T<\/div><\/td>\n
H\/T<\/div><\/td>\n <\/tr>\n
M5<\/div><\/td>\n
16-40<\/div><\/td>\n
35-60<\/div><\/td>\n <\/tr>\n
M6<\/div><\/td>\n
16-40<\/div><\/td>\n
35-60<\/div><\/td>\n <\/tr>\n
M8<\/div><\/td>\n
20-50<\/div><\/td>\n
40-80<\/div><\/td>\n <\/tr>\n
M10<\/div><\/td>\n
20-60<\/div><\/td>\n
45-100<\/div><\/td>\n <\/tr>\n
M12<\/div><\/td>\n
20-70<\/div><\/td>\n
55-100<\/div><\/td>\n <\/tr>\n<\/table>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\r\n\t\t
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ANSI B 18.5<\/div><\/td>\n <\/tr>\n
Size<\/div>
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Length<\/div><\/td>\n <\/tr>\n
F\/T<\/div><\/td>\n
H\/T<\/div><\/td>\n <\/tr>\n
1\/4"<\/div><\/td>\n
5\/8" - 1 3\/4" <\/div><\/td>\n
1 1\/2" - 2 1\/2"<\/div><\/td>\n <\/tr>\n
5\/16"<\/div><\/td>\n
3\/4" - 2 3\/4"<\/div><\/td>\n
1 1\/2" - 3 "<\/div><\/td>\n <\/tr>\n
3\/8"<\/div><\/td>\n
3\/4" - 2 3\/4"<\/div><\/td>\n
1 1\/2" - 3 "<\/div><\/td>\n <\/tr>\n<\/table>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t
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Carriage Bolt Technical Specifications (DIN 603 \/ ISO 8677 - Metric)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t
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Nominal Diameter (d)<\/td>\n Pitch (P)<\/td>\n Head Diameter (dk)<\/td>\n Head Height (k)<\/td>\n Square Neck Width (a)<\/td>\n Neck Height (m)<\/td>\n Standard Length Range (L)<\/td>\n <\/tr>\n
M5<\/td>\n 0.8 mm<\/td>\n 13.55 – 14.1 mm<\/td>\n 3.3 mm<\/td>\n 5.52 – 5.7 mm<\/td>\n 3.7 mm<\/td>\n 16 – 60 mm<\/td>\n <\/tr>\n
M6<\/td>\n 1.0 mm<\/td>\n 16.55 – 17.1 mm<\/td>\n 3.88 mm<\/td>\n 6.52 – 6.7 mm<\/td>\n 4.7 mm<\/td>\n 16 – 60 mm<\/td>\n <\/tr>\n
M8<\/td>\n 1.25 mm<\/td>\n 20.65 – 21.2 mm <\/td>\n 5.38 mm<\/td>\n 8.52 – 8.7 mm<\/td>\n 6.4 mm<\/td>\n 20 – 150 mm<\/td>\n <\/tr>\n
M10<\/td>\n 1.5 mm<\/td>\n 24.65 – 25.2 mm<\/td>\n 6.38 mm<\/td>\n 10.52 – 10.7 mm<\/td>\n 8 mm <\/td>\n 25 – 200 mm<\/td>\n <\/tr>\n
M12<\/td>\n 1.75 mm<\/td>\n 30.65 – 31.2 mm<\/td>\n 7.38 mm<\/td>\n 12.52 – 12.7 mm<\/td>\n 9.5 mm<\/td>\n 30 – 250 mm<\/td>\n <\/tr>\n
M16<\/td>\n 2.0 mm<\/td>\n 38.8 – 40.0 mm<\/td>\n 8.8 mm<\/td>\n 16.62 – 16.9 mm<\/td>\n 12.5 mm<\/td>\n 40 – 300 mm<\/td>\n <\/tr>\n
M20<\/td>\n 2.5 mm<\/td>\n 49.2 – 50.8 mm <\/td>\n 10.2 mm<\/td>\n 20.7 – 21.1 mm<\/td>\n 16 mm <\/td>\n 50 – 300 mm<\/td>\n <\/tr>\n<\/table>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t
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