Challenge Knife Bolt – B45
Knife bolts for Challenge 193, 20, 230, 265, 265H, 305, 370 AUTO, 370 E, 370 G, 370 GM, 370 GMA, 370 GPB, 370 TCM, 370XG, 370 XT, 370 TC, Titan 20, and Titan 200 Paper Cutters. Socket head cap screw, high strength Grade 8.
Equivalent to the Challenge knife bolts, part number H-6918-608. Supplied complete with a heavy flat washer, equivalent to Challenge part number 8815. The case hardened washer is 1″ in diameter and 1/8″ thick. Made in USA.
Chandler & Challenge Knife Bolt – B56
Knife bolts for Chandler Price Paper Cutters and some Challenge Paper Cutters, including the Challenge Diamond paper cutters from serial number 20001 to 28016. (S645 V thread, Challenge bolt part number S-645, Challenge washer part number S-353, and Challenge part number 6708)
This steel hex head bolt has a 1/2-12 thread. It measures 13/16″ long below the washer. The hex head measures 3/4″ across the flats. The steel washer is captive; it rotates but does not come off. The steel washer is .11″ thick and measures 1-3/8″ in diameter.
These bolts also fit older (pre 1950) Pavyer table top paper cutters.
Eurocutter Knife Bolt – B706
Knife bolt for Eurocutter Paper Cutter. This special low head bolt is 30mm (1.18″) long below the head and it has an M12 thread. These alloy steel socket head blade bolts use a 10mm allen key. (Our W74 “T” wrench fits these bolts.) These knife bolts are used in most of the EuroCutter Guillotine Paper Cutters. They have a black oxide finish to improve their corrosion protection. (HK109)
Please note that the photo shows 2 pieces for clarity. Price is for 1 piece.
Imperial and Horizon Knife Bolt – B57-11
Knife Bolts for Imperial & Horizon Paper Cutters. This steel hex head blade bolt is 11mm ( .43″) long below the head. It has an M10 thread with a 1.5mm thread pitch. The head measures 17mm (.67″) across the flats and is 5mm (.20″) high. It has a black oxide finish for corrosion resistance.
Imperial and Horizon Knife Bolt – B57-9.5
Knife Bolt for Imperial and Horizon Paper Cutters. This steel hex head bolt is 9.5mm ( .38″) long below the head. It has an M10 thread with a 1.5mm thread pitch. The head measures 17mm (.67″) across the hex flats and the head is 5mm (.20″) high. Black oxide surface finish for added corrosion protection.
ITOH Knife Bolts – B65
Socket Head Bolt, 1/2-12 thread, 1-1/16″ overall length below the washer. The captive washer is fixed in place and will not fall off. (equivalent to the original ITOH part number OD960120)
Please NOTE: These bolts have a 3/8″ hex socket head, the original ITOH bolts had a metric hex socket head. A 3/8″ hex allen key is required to tighten and loosen these bolts.
Lawson Knife Bolt – B44
National, Challenge & Early Seybold Knife Bolt – B48
For Challenge 370 E and G series models, and 420, National, and early Seybold Paper Cutters. This 1/2-12 thread steel hex head cap screw fits the Challenge 370 E and G models, Challenge 420, most National, and early Seybold Paper Cutters. (Equivalent to the original Challenge “1/2 x 1″ V-Thread knife bolt, part number S-645, with the equivalent washer, originally part number S-353.)
The 1/2″-12 thread is 1-3/32” long below the washer. The washer is captive, it spins in place but it will not fall off.
Pivano Knife Bolt – B62
Pivano Knife Bolts – B511
Polar Knife Bolt – B66 (025569)
B66 (equivalent to Polar 025569) Polar Knife Bolt. Low Head Hex Head Bolt, 10mm diameter, 20mm (.79”) long below the captive washer. The 1” diameter (25 mm diameter) heavy washer has a beveled edge. For Polar 78 guillotine paper cutter models including Polar 78 E, Polar 78 S, Polar 78 ES, Polar 78 ED, Polar 78 X, Polar 78 XS and Polar 78 XT. Also fits Polar 92, Polar 92 S, Polar 92 E, Polar 92 ED, Polar 92 ES, Polar 92 XS, Polar 92 XT and Polar 92 X.
These bolts also fit the Polar 92 EMC, from machine serial number 6011601 to 6011875, and from 6111001 and higher.
These bolts do not fit the Polar 92 CE and 92 CS. For these models see our part number B47.
This knife bolt also fits the Baumfolder Baumcut 31.5 paper cutter. (equivalent to Baumcut part number M25569)
Polar Knife Bolt – B704
Knife Bolts for many of the newer Polar X, XT, E and ED Paper Cutters (equivalent to Polar 409569, 409569b, and 256691). These were also used on some of the later EMC-MON models.
These zinc plated, hex head cap screws have a 12 mm diameter thread. Included with each bolt is a heavy 4mm thick zinc plated washer (equivalent to Polar 419520 and 419520b) made from heat treated 4140 steel. These blade bolts are 24.5mm long below the washer. The washer is threaded to keep it in place.
For a “T” Wrench for this bolt see our part number W81.
Also see our part numbers B46, B47, B66, B521, and B522 for knife bolts which fit older models of Polar Paper Cutters.
Please note that the photo shows 2 pieces for clarity. Price is for 1 piece.
Pro Cut 320 Knife Bolt – B701
Knife Bolt for the Pro-Cut paper cutters.
This bolt fits the Pro Cut 320, and possibly other Pro-Cut models. Included with each blade bolt is a thick hardened steel washer. The washer measures 1-1/4″ outside diameter x 17/32″ inside diameter x 1/8″ thick. Both the bolt and the washer are black oxide treated for corrosion protection.
Please note that the photo shows 2 pieces for clarity. Price is for 1 piece.
Schneider Knife Bolt – B708
Knife bolt for Schneider Paper Cutters. This Grade 10.9 hex head bolt is 22 mm (7/8″) long below the washer and it has an M12 thread. The thread pitch is 1.75 mm. These alloy steel blade bolts have a 19 mm hex head. They are provided with a heavy (3 mm thick) washer. The outside diameter of the washer is 28.5 mm (1-1/8″). These knife bolts are used in most of the Schneider paper cutters, including the Schneider Senator models. They have a black oxide finish to improve their corrosion protection.
These knife bolts use our part number W81 “T” Wrench.
Please note that the photo shows 2 pieces for clarity. Price is for 1 piece.
Seybold & Oswego Knife Bolt – B43
Hex Head knife bolts with integral washer. This bolt has a 1/2″-12 thread and measures 3/4″ long below the washer. (Its overall length is 1 1/8″ long.) The hex head is 11/16″ across the flats. The washer is 1/8″ thick with a 1-3/16″ diameter. It is made from one piece of steel, including the washer, and it includes a screwdriver slot in the tip. It fits many Seybold and Oswego paper cutters, including the Seybold Citation. This blade bolt has a black oxide finish for corrosion resistance. Made in USA.
Seybold part number CFA-033B or CFA00033B.
Seybold Knife Bolt – B41 (1/2-12 thread)
Bolts for Seybold CF and most older Seybolds. This square headed knife bolt is fitted with an integral washer. The washer rotates on the bolt but is not removable. This bolt has 1/2″-12 threads and measures 25/32″ long below the washer. (Overall length is 1 1/4″ long) The square head measures 5/8″ across the flats. The steel washer is 1/8″ thick and measures 1-1/8″ in diameter. A screwdriver slot is provided in the threaded end to aid in removal if the head gets rounded over from a worn wrench or socket. (This is the same bolt as our B42 bolt, EXCEPT that it has a different thread pitch. The B41 has 1/2-12 threads, the B42 has 1/2-13 threads.) Made in USA.
See our part number W78 for a knife bolt wrench that fits these bolts.
Seybold Knife Bolt – B42 (1/2-13 thread)
Seypa Perfecta Knife Bolt – B53
Triumph Knife Bolt – B67
Triumph MBM Ideal Knife Screws – B702
Wohlenberg Knife Bolt – B60 (SAE threads)
Wohlenberg Knife Bolt – B61 (SAE threads)
Wohlenberg Knife Bolt – B63 (Metric threads)
Wohlenberg Knife Bolt – B64 (metric threads)
Prism Knife Bolt – (250400840A) B705
Knife Bolts for Prism Paper Cutters. Equivalent to Prism part number 250400840A. This hex head flange bolt fits in Prism 115 and 116 and other Prism paper cutters. It will also fit some Saber 115 paper cutters. It has an M12 thread, it is 24mm (.98″) long below the head, and it has a 25.4mm (1″) diameter washer built into it. Both the bolt and the washer are machined out of a single piece of 4140 cold rolled steel. The washer will not rotate. The oversize head measures 19mm (.75″) across the flats. It has a screwdriver slot machined into the tip of the threaded end to help remove it if the hex head wears down. It also has a black oxide finish for corrosion protection.
Made in USA.
Polar Knife Bolt – B46 (200292)
Polar guillotine Knife Bolts (equivalent to Polar 200292) for Polar 107, Polar 112, Polar 115, Polar 137, Polar 145, Polar 150 & Polar 155 paper cutters. Socket head cap screw, M12 x 22mm long (.87″) below the head. This bolt has a screwdriver slot cut in the threaded end, as shown in the photo, to help with removal if the allen key socket gets worn out over time and stripped. It has a black oxide surface finish for added corrosion resistance.
Also see our knife bolt part number B704 which fits the newer models of Polar paper cutters, generally those cutters which were made after the late 1980’s.
Polar Knife Bolt – B47 (200962)
Polar Knife Bolt – B521
Polar Knife Bolt – B522
Knife Bolt for Polar 55, Polar 55 EM, Polar 58 E, Polar 58 EM, Polar 66, Polar Power Max 28, Polar 71 and most of the Polar 72 (28″) Paper Cutters (equivalent to Polar 013551, 014775, 014776, 021054, and 200276) Socket head cap screw, 10mm diameter thread by 17mm long (.67″) below the washer. It has a 1″ diameter washer which is 1/4″ thick and has been counter bored 1/16″ deep to fit the head. The washer is held captive by a snap ring. See our part number B521 for a longer version of this same bolt. Order these by the bolt length under the washer, not by the Polar model number.
These blade knife bolts will also fit some models of Baumcut Paper Cutters. (such as the Baum 26.4, the Baumcut 31.5″, and the Baumcut 80 models)
Muller Martini Knife Bolt – B707
RIBE style cap screw or knife bolt for many of the Muller Martini cutters, including the 3-knife trimmers, the Zenith Trimmer, and the Muller Martini Merit. This steel blade bolt comes complete with an attached hardened washer which rotates in place but will not fall off. The screw threads are M10 X 1.5mm. The bolt measures 26.5mm long (1.04″), including the head. It is 16.5mm long (5/8″) below the washer. The outside diameter of the washer is 20mm (.79″) in diameter. The bolts and washers are black oxide treated.
These blade bolts or blade screws have a RIBE or polydrive head, Grade 10.9 steel. (equivalent to Muller Martini blade bolt part number 3670.4320.4)
Please note that the photo shows 2 pieces for clarity. Price is for 1 piece.