JCP Throughbolts, Hot Dip Galvanised

M8 - M20 (50 - 280mm) Carbon steel, hot dip galvanised to BS EN ISO 1461

We supply JCP hot dip galvanised throughbolts from M8 to M20 in lengths from 50mm to 280mm. The galvanised coating is applied to BS EN ISO 1461 and suits external and damp environments where zinc plating is not enough but stainless steel is not required. The range covers non-cracked concrete C20/25 to C50/60.

Also known as: galvanised throughbolt, galv through bolt, hdg throughbolt.

Hot dip galvanised throughbolt dimensions

Thread size	Order code	Drill diameter (d0)	Length (L)	Thread length	Min hole depth (h1)	Max fixture thickness	Installation torque (Nm)
M8¹	TG08050	8 mm	50 mm	15 mm	45 mm	5 mm	15
M8	TG08075	8 mm	75 mm	40 mm	65 mm	10 mm	15
M8	TG08095	8 mm	95 mm	50 mm	65 mm	30 mm	15
M8	TG08120	8 mm	120 mm	85 mm	65 mm	55 mm	15
M10¹	TG10060	10 mm	60 mm	20 mm	50 mm	10 mm	30
M10¹	TG10070	10 mm	70 mm	30 mm	50 mm	20 mm	30
M10	TG10080	10 mm	80 mm	40 mm	70 mm	10 mm	30
M10	TG10100	10 mm	100 mm	55 mm	70 mm	30 mm	30
M10	TG10125	10 mm	125 mm	80 mm	70 mm	50 mm	30
M12¹	TG12085	12 mm	85 mm	40 mm	70 mm	10 mm	50
M12	TG12100	12 mm	100 mm	55 mm	90 mm	5 mm	50
M12	TG12115	12 mm	115 mm	60 mm	90 mm	20 mm	50
M12	TG12145	12 mm	145 mm	95 mm	90 mm	50 mm	50
M12	TG12180	12 mm	180 mm	110 mm	90 mm	85 mm	50
M16¹	TG16110	16 mm	110 mm	50 mm	85 mm	15 mm	100
M16	TG16125	16 mm	130 mm	65 mm	110 mm	10 mm	100
M16	TG16150	16 mm	150 mm	90 mm	110 mm	30 mm	100
M16	TG16200	16 mm	200 mm	115 mm	110 mm	80 mm	100
M20	TG20170	20 mm	170 mm	100 mm	130 mm	25 mm	200
M20	TG20220	20 mm	220 mm	125 mm	130 mm	75 mm	200
M20	TG20280	20 mm	280 mm	150 mm	130 mm	135 mm	200

Reduced loading due to shallow embedment (JCP catalogue note).

Related specifications

Zinc plated throughbolt ETA Option 7 galvanised throughbolt ETA Option 7 A4 stainless throughbolt

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