From The Anvil Black Bolt with Knob Cranked 4 inch 33981, 6inch 33979

These new bolts in our range are tight fitting, well made and have a unique spring mechanism. For outward opening doors.

4 inch 33981
Fixing Plate: 3.5 inch x 1.375 inch (89mm x 34mm)
Receiver Bridge: 1.375 inch x .75 inch (34mm x 19mm)

6 inch 33979
Fixing Plate: 6.25 inch x 2 inch (158mm x 51mm)
Receiver Bridge: 2 inch x 1 inch (51mm x 25mm)

Please note the part numbers were wrong in the 2019 From the Anvil brochure, the above is correct.