Metric anchor bolts – L, J, headed & hammer-head

Range

Metric anchor bolt sizes
Size	Pitch	As (mm²)	4.6 ultimate	8.8 ultimate	Typical use
M16	2.0	157	63 kN	126 kN	Canopies, light frames
M20	2.5	245	98 kN	203 kN	Portal frame pinned bases
M24	3.0	353	141 kN	293 kN	Portal frames, mezzanines
M30	3.5	561	224 kN	466 kN	Fixed bases, crane columns
M36	4.0	817	327 kN	678 kN	Heavy frames, towers
M42 – M64	4.5 – 6.0	1120 – 2680	448 – 1072 kN	930 – 2224 kN	Equipment, silos, tall columns

Ultimate tensile loads As × fu are shown for selection only – anchor design checks steel, pull-out and concrete failure.

Types

L and J bolts rely on the bend for anchorage and suit pinned bases; headed bolts – with a hex nut and plate washer at the bottom – carry higher tension through bearing on the concrete. Straight rods with an embedded plate are used for tall piers; hammer-head bolts fit cast-in anchor channels.

Fabricated in our plant

Anchor bolts are cut, threaded, bent and galvanized with the column steel, so the bolt pattern, projection and base plate holes come from the same model. Threads are protected with tape or caps for shipping.

المعايير والمتطلبات حسب السوق

المعايير التي تصمم World Steel هذا المنتج وتصنّعه وتوثّقه وفقها – والمتطلبات الهندسية الرئيسية ومتطلبات الأحمال في كل سوق.