SUPER FAST STRUCTURAL TIMBER SCREW

For High-Load Beam-to-Frame & Roof Truss Connections

Benchmarking Test for Insert Torque

Specification Drawing

Super-Fast Structural Timber Screw Technical Parameters

Geometric properties	Nominal Ø [mm]	6.0	8.0	10.0
	Shaft Øs [mm]	4.3	5.8	6.9
	Inner Øi [mm]	3.9	5.3	6.3
Mechanical properties	Tensile Rm [Mpa]	≥800
	Yield Rp0.2 [Mpa]	≥640
	Shear τ [KN]	3.5	5.4	6.2
	Surface hardness [HV]	420~620
	Core hardness [HV]	320~420
	Torque [N·m]	≥11.0	≥28.0	≥40.0
	Bending [°]	≥45°

Nominal Size	Driver	D	L	dk	dc	d	Lc	Lg
∅6.0	TX30	5.8~6.2	80~280	14.5~16.1	4.8~5.6	3.65~4.0	11.0~13.0	40~75
∅8.0	TX40	7.6~8.25	80~400	20.5~23.5	6.0~6.8	5.05~5.5	11.0~13.0	50~100
∅10.0	TX50	9.6~10.25	80~400	23.5~26.5	7.9~8.7	6.2~6.7	11.0~13.0	50~100

Size	Length	Head	Drive	Material	Finish	Thread Feature	Slot & Tip
M6	80-280mm	Wafer	Torx T30	Carbon Steel	Blue Zinc Passivation & Wax	Coarse Thread	Single Type 17 Slot / Auger Point
M8	80-400mm	Wafer	Torx T40	Carbon Steel	Blue Zinc Passivation & Wax	Coarse Thread	Single Type 17 Slot / Auger Point
M10	80-400mm	Wafer	Torx T50	Carbon Steel	Blue Zinc Passivation & Wax	Coarse Thread	Single Type 17 Slot / Auger Point