Application.
Datsun 1200 (7001 - 7305)
Datsun 1200 ute (7510 - 9403)
Datsun 1000 (6604 - 7001)
Datsun 120Y, B210-B310 (7305 - 7710 - 8304)
Datsun E10 (7010 - 7409)
Will Fit for Datsun A Series Engines. (A12, A14, A15).

Include.
x9 Bolts.
*Does not include oil-line center bolt.(13 bolt)/Please choose from option.

This bolts will upgrad similer to  the GX bolts(13 mark bolt).
Center bolts(97-107)/ nine(9)
Oil line bolt(110-120) one(1).

(1)Identification mark on GX head Bolts(embossed letter) ⑬

Note: ordinary one carburetor-use head bolts do not have a "13" mark on the bolt head.
The GX-ues cylinder head bolts use a material having a higher tensile strength than the ordinary one carburetor-use cylinder head bolts.

(2)Bolt tightening torque    (Production line deta)
*1st time   6.0Kg-m.              (4.5kg-m)
*2nd time   7.0kg-m.             (6.5kg-m)
*Last       7.3-7.8kg-m.          (6.5-7.0kg-m)

*SIZE(Approx)
Thread: M10-P-1.5-metric.
Hex head : 14mm.
Thread length: 29mm.
Head bottom length: 97mm.
Whole length: 107mm.

*SIZE(Approx)
Thread: M10-P-1.5-metric.
Hex head : 14mm.
Thread length: 27mm.
Head bottom length: 110mm.
Whole length: 120mm.
Converter mm-inch