PTB Through Bolt

The Prudential through bolt is a mechanical expansion anchor. The sleeve expands to grip the concrete. Simple to install, it suits light-duty anchoring in concrete.

Product Certification：
Load capacity report / Material analysis / 210-hour salt spray test report

Scope of application：
For fixing light-load components to concrete: pipe supports, guardrails, decorative elements and small equipment.

Product Advantages

Multi-stage expansion, excellent load capacity

A unique multi-segment expansion design opens the sleeve evenly when tightened, gripping a large area of the hole wall. High pull-out and shear strength for medium to heavy loads such as steel supports, curtain wall sub-frames and heavy MEP equipment.

Low edge and spacing requirements

Expansion forces are dispersed rather than concentrated, so the concrete is unlikely to split. Compared with standard expansion anchors, it allows smaller edge distances and spacings, including tight corners and beam sides.

Corrosion and seismic resistant, stable long-term

Fully hot-dip galvanised for acid, alkali and ageing resistance, and tested for seismic performance. The anti-slip locking washer resists loosening under continuous vibration.

Technical parameters

Material	Carbon steel、304、316
Grade	Grade 4.8、Grade 5.8、Grade 8.8
Surface treatment	Zinc plated、Hot-dip galvanised
Substrate	Non-cracked concrete

Specification and Model

Product model	Anchor dia.φ（mm）	Hole dia. d (mm)	Installation torque（N·m）	Anchor length l (mm)
M6×60	M6	6	5	60
M6×70	M6	6	5	70
M6×80	M6	6	5	80
M8×70	M8	8	15	70
M8×80	M8	8	15	80
M8×100	M8	8	15	100
M10×80	M10	10	25	80
M10×100	M10	10	25	100
M10×120	M10	10	25	120
M12×100	M12	12	50	100
M12×120	M12	12	50	120
M12×140	M12	12	50	140
M16×120	M16	16	80	120
M16×140	M16	16	80	140
M16×160	M16	16	80	160
M20×170	M20	20	120	170
M20×200	M20	20	120	200
M20×240	M20	20	120	240