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M20 x 65 mm hex head adjusting bolt for block knife positioning in Virtus Equipment and ZERMA America GSH 600/800, GSH 800/1200, and GSH 800/1600 Heavy-Duty Granulators. Grade 10.9. Also referenced as part number 80050778. Used with M20 nut (80010490) to set precise block knife position. Sold individually.
The Adjusting Bolt M20 x 65 Hex Head 10.9 is a grade 10.9 metric hex head bolt used in the block knife adjustment system of Virtus Equipment and ZERMA America GSH 600/800, GSH 800/1200, and GSH 800/1600 Heavy-Duty Granulators. This part is also referenced in the inventory system as part number 80050778. The GSH series features a specially developed deflector wedge system with block knives that assist the main rotor knives with initial size reduction of bulky material and protect the rotor from oversize feed. This adjusting bolt enables fine positioning of the block knife to set the correct clearance between the block knife cutting edge and the rotor. It works in combination with the M20 nut (80010490) and the standard block knife fixing bolts. The hex head drive allows use of standard open-end or ring wrenches during adjustment. Grade 10.9 construction provides a minimum tensile strength of 1,000 N/mm². Consult your machine’s parts documentation to confirm the correct quantity. Sold individually.
| Weight | 0.6 lbs |
|---|---|
| Dimensions | 3 × 2.5 × 2.5 in |
SKU: 20014100 (also referenced as 80050778)
Thread Size: M20 x 2.5 mm (coarse pitch)
Length: 65 mm
Head Type: Hex Head
Wrench Size: 30 mm
Property Class: 10.9
Tensile Strength: 1,000 N/mm² minimum
Tip Style: Dog point (unthreaded pilot)
Use With: DIN 934 Nut M20 (80010490)
Sold As: Individual bolt
Grade 10.9 High-Strength Construction: Provides 1,000 N/mm² minimum tensile strength and 900 N/mm² yield strength -- suitable for the high-stress block knife adjustment and locking positions in GSH series granulators.
Hex Head Drive: Standard 30 mm hex head allows use of open-end or ring wrenches during block knife adjustment without specialized tooling.
Block Knife Positioning: Dog point (unthreaded pilot tip) aids alignment into the block knife bracket during installation, preventing cross-threading in the precision-tapped mounting positions.
Used With DIN 934 Nut M20: Works as a pair with the M20 nut (80010490) to set and lock block knife position. Order both components together when servicing the block knife assembly.
Also Referenced As: This part is also referenced in the inventory system as part number 80050778.
Used in the block knife adjustment system of the Virtus Equipment and ZERMA America GSH series Heavy-Duty Granulators. Always order and use together with the M20 nut (80010490). Consult your machine’s parts documentation to confirm the correct quantity for your specific machine model and knife configuration.
Compatible Machines: Virtus Equipment H 60-80 and ZERMA America GSH 600/800; Virtus Equipment H 80-120 and ZERMA America GSH 800/1200; Virtus Equipment H 80-160 and ZERMA America GSH 800/1600 Heavy-Duty Granulators
Use With: DIN 934 Nut M20 (SKU 80010490)
