Breech plug screw for most Benjamin 110, 122, 177, 130, 132,137, 150, 160, 300, 310, 312, 317, 340, 342, 347, 352, 360, 362, 367, 710, 720, 1300, 3100, 3120, 3600,etc. It is the same screw as BEN102, BEN110, BEN302, BEN602, BEN1105, BEN1505, BEN2502, BEN2602, BEN3502, etc.
