PETROCHEMICAL
Plating & Coatings
Fasteners
Hex Head Products
Socket Products
Foundation Bolting
Studding
Hex Nuts
Washers
Gaskets
Spiral Wound Gaskets
Ring Type Joints
Soft Cut Gaskets
Insulation Kits
Pipe Supports
U-Bolts
Pipe Clamps
Eyebolts
Hemispherical Washers
Hex Connecting Nut
I-Rod / Nu-Bolts
VOID FORMERS
DIN529E (INDENTED FOUNDATION BOLT)
| BOLT LENGTH | WAXED CARDBOARD CONE LENGTH | WAXED CARDBOARD CONES - INTERNAL DIA AT TOP | WAXED CARDBOARD CONES - INTERNAL DIA AT BOTTOM | POLYSTYRENE BOLT BOXES - INTERNAL DIA AT BOTTOM | EXPANDED METAL BOLT BOXES - LENGTH |
|---|---|---|---|---|---|
| 300 | 229 | 70 | 25 | 75 x 225 | 225 |
| 375 | 305 | 92 | 25 | 75 x 300 | 300 |
| 400 | 305 | 92 | 25 | 75 x 300 | 350 |
| 450 | 380 | 108 | 27 | 75 x 375 | 375 |
| 525 | 457 | 114 | 32 | 75 x 450 | 450 |
| 600 | 534 | 118 | 32 | 75 x 475 | 550 |
| 750 | 610 | 132 | 32 | 75 x 600 | 600 |
BOLT LENGTH DATA
300
Waxed Cardboard Cones Minimum Cone Length229
Internal Dia at Top70
Internal Dia at Bottom25
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 225
Expanded Metal Bolt Boxes Length-
375
Waxed Cardboard Cones Minimum Cone Length305
Internal Dia at Top92
Internal Dia at Bottom25
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 300
Expanded Metal Bolt Boxes Length300
400
Minimum Cone Length305
Internal Dia at Top92
Internal Dia at Bottom25
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 300
Expanded Metal Bolt Boxes Length350
450
Minimum Cone Length380
Internal Dia at Top108
Internal Dia at Bottom27
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 375
Expanded Metal Bolt Boxes Length375
525
Minimum Cone Length457
Internal Dia at Top114
Internal Dia at Bottom32
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 450
Expanded Metal Bolt Boxes Length450
600
Minimum Cone Length534
Internal Dia at Top118
Internal Dia at Bottom32
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 475
Expanded Metal Bolt Boxes Length550
750
Minimum Cone Length610
Internal Dia at Top132
Internal Dia at Bottom32
Polystyrene Bolt Boxes Internal Dia at Bottom75 x 600
Expanded Metal Bolt Boxes Length600
When installing foundation bolting, specifically Holding Down Bolts (Square Square), instances arise where a pocket or void is required around the bolt, to allow for easier adjustment even after the concrete has been poured and set. We offer three alternative products for this purpose.
CONICAL BOLT BOXES
axed cardboard void former provides an easy method of bolt alignment for steel frame buildings.
POLYSTYRENE BOLT BOXES
his Polystyrene void former offers a low cost method of forming a cavity in foundations for holding down bolts. Core diameter for bolt approximately 25mm
EXPANDED METAL BOLT BOXES
Expanded metal void former designed for positioning holding down bolts where the bolt box remains in the concrete