JCP ETA Option 7 Throughbolts, A4 Stainless Steel

M6 - M20 (40 - 240mm) A4-316 stainless steel

We supply JCP ETA Option 7 throughbolts in A4-316 stainless steel from M6 to M20, lengths 40mm to 240mm, for external and marine fixings into non-cracked concrete C20/25 to C50/60. Option 7 is the European Technical Assessment for non-cracked concrete; where cracked-concrete performance, fire or seismic categories are specified, use the A4 Option 1 range instead.

Also known as: a4 throughbolt, marine throughbolt, stainless option 7.

ETA Option 7 A4 stainless throughbolt dimensions

Thread size	Order code	Drill diameter (d0)	Length (L)	Thread length	Min hole depth (h1)	Max fixture thickness	Installation torque (Nm)
M6¹	TSS06040	6 mm	40 mm	16 mm	35 mm	5 mm	6
M6	TSS06065	6 mm	67 mm	30 mm	55 mm	10 mm	6
M8¹	TSS08050	8 mm	50 mm	22 mm	45 mm	5 mm	15
M8	TSS08075	8 mm	75 mm	40 mm	65 mm	10 mm	15
M8	TSS08095	8 mm	95 mm	60 mm	65 mm	30 mm	15
M8	TSS08120	8 mm	120 mm	85 mm	65 mm	55 mm	15
M10²	TSS10060	10 mm	60 mm	25 mm	50 mm	10 mm	25
M10	TSS10080	10 mm	85 mm	40 mm	70 mm	10 mm	25
M10	TSS10100	10 mm	105 mm	60 mm	70 mm	30 mm	25
M10	TSS10125	10 mm	125 mm	80 mm	70 mm	50 mm	25
M10	TSS10175	10 mm	175 mm	80 mm	70 mm	100 mm	25
M10	TSS10215	10 mm	215 mm	80 mm	70 mm	140 mm	25
M12²	TSS12085	12 mm	95 mm	50 mm	75 mm	14 mm	50
M12	TSS12100	12 mm	105 mm	60 mm	90 mm	10 mm	50
M12	TSS12115	12 mm	115 mm	70 mm	90 mm	20 mm	50
M12	TSS12145	12 mm	145 mm	100 mm	90 mm	50 mm	50
M12	TSS12200	12 mm	200 mm	100 mm	90 mm	105 mm	50
M16²	TSS16110	16 mm	115 mm	60 mm	95 mm	14 mm	100
M16	TSS16125	16 mm	130 mm	70 mm	110 mm	10 mm	100
M16	TSS16150	16 mm	150 mm	90 mm	110 mm	30 mm	100
M16	TSS16175	16 mm	180 mm	110 mm	110 mm	60 mm	100
M20	TSS20170	20 mm	180 mm	70 mm	130 mm	35 mm	160
M20	TSS20220	20 mm	240 mm	70 mm	130 mm	95 mm	160

No performance assessed per JCP technical data sheet.
Reduced loading due to shallow embedment (JCP catalogue note).

Materials & strength

Material & finish

A4-316 stainless steel. Suitable for external use and marine environments.

Certification

European Technical Assessment ETA-07/0332, Option 7 (non-cracked concrete C20/25 to C50/60). Certificates are available on request.

Related specifications

ETA Option 1 A4 stainless throughbolt A2 stainless steel throughbolt

Frequently asked

What is this range assessed for?

ETA Option 7 - anchoring in non-cracked concrete C20/25 to C50/60 - in a marine-grade A4-316 stainless steel. It is the usual pick for assessed external fixings where the base material is sound and uncracked.

Why do some short lengths carry a note?

The table notes flag the exceptions: the two smallest sizes carry no assessed performance per the JCP data sheet, and a few other short lengths are listed at reduced loading due to shallow embedment per the catalogue. Where the specification leans on the ETA, choose a standard-embedment length.

Need ETA Option 7 A4 stainless throughbolt in a non-standard size or material?

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