
Steel Carriage Bolt, Grade 5, Zinc Plated Finish, Square Neck, Round Head, Meets ASME B18.5/SAE J429, 3/4" Length, Fully Threade-
Amazon
From $7.62 (New)

From $7.62 (New)

| Last Seen | |
| Highest | $13.30 Sep 24, '15 |
| Lowest | $6.07 Dec 23, '14 |
| Average | $7.51 (30d avg) $8.94 (90d avg) $10.44 (180d avg) $11.32 (365d avg) $10.11 (Lifetime average) |
| Added | Oct 19, 2014 |
| Last Seen | |
| Highest | $2.60 Feb 28, '16 |
| Lowest | $2.60 Feb 28, '16 |
| Average | $2.60 (Overall average) |
| Added | Oct 19, 2014 |
30 day average: 721,084
90 day average: 688,976
The grade 5 steel carriage bolt with zinc plated finish has a square neck and round head and meets American Society of Mechanical Engineers ASME B18.5 and Society of Automotive Engineers J429 specifications. Grade 5 steel, composed of quenched and tempered medium carbon steel, is often used in applications where strength is the primary concern. The zinc plating offers corrosion resistance and has a reflective appearance. The square neck prevents the bolt from turning once installed, even when a nut is tightened. The round head has a domed shape.Carriage bolts, also called round head square neck bolts, are square-necked threaded fasteners commonly used in wood fastening applications. The bolts square neck prevents it from turning once installed using a nut.