BT Pull Stud Retention Knob
BT Pull Stud Retention Knob (MAS 403-1975 Standard) is precision machined from 20CrMnTi alloy steel with heat treatment for durability. Compliant with Japanese MAS-403 specifications for BT series tool holders. Available in 45°, 60°, and 90° pull claw angles. T model indicates center coolant-through hole for through-spindle coolant. Covers BT30, BT40, BT50, and BT60 full series.
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$1k+
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$8k+
8%
$15k+
12%
$30k+
15%
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Specifications
24 SKUs| Cart+ | SKU | Price | Quantity | Total | D (mm) | d1 (mm) | d2 (mm) | d3 (mm) | L (mm) | L1 (mm) | L2 (mm) | T | D4 (mm) | FIG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
BT30-45° | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | - | Fig.1 | ||
BT40-45° | $3 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | - | Fig.1 | ||
BT50-45° | $7 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | - | Fig.1 | ||
BT60-45° | $34 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | - | Fig.1 | ||
BT30-60° | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | - | Fig.1 | ||
BT40-60° | $3 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | - | Fig.1 | ||
BT50-60° | $8 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | - | Fig.1 | ||
BT60-60° | $34 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | - | Fig.1 | ||
BT30-90° | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | - | Fig.1 | ||
BT40-90° | $3 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | - | Fig.1 | ||
BT50-90° | $8 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | - | Fig.1 | ||
BT60-90° | $34 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | - | Fig.1 | ||
BT30-45°T | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | 3 | Fig.2 | ||
BT40-45°T | $4 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | 4 | Fig.2 | ||
BT50-45°T | $9 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | 6 | Fig.2 | ||
BT60-45°T | $41 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | 14 | Fig.2 | ||
BT30-60°T | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | 3 | Fig.2 | ||
BT40-60°T | $4 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | 4 | Fig.2 | ||
BT50-60°T | $9 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | 6 | Fig.2 | ||
BT60-60°T | $41 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | 14 | Fig.2 | ||
BT30-90°T | $3 | $0 | 16.5 | 11 | 7 | 12.5 | 43 | 23 | 18 | M12 | 3 | Fig.2 | ||
BT40-90°T | $4 | $0 | 23 | 15 | 10 | 17 | 60 | 35 | 28 | M16 | 4 | Fig.2 | ||
BT50-90°T | $9 | $0 | 38 | 23 | 17 | 25 | 85 | 45 | 35 | M24 | 6 | Fig.2 | ||
BT60-90°T | $41 | $0 | 56 | 32 | 24 | 31 | 115 | 65 | 53 | M30 | 14 | Fig.2 |
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Features
Key product features and specifications that make this product stand out.
MAS 403-1975 Japanese standard compliant for BT tool holders
20CrMnTi alloy steel with head hardness 55-58 HRC
High precision machining with 0.005mm dimensional accuracy
Multiple angle options: 45°, 60°, 90° for spindle systems
T suffix: center coolant-through hole for through-spindle coolant
Complete BT30, BT40, BT50, BT60 size range available
Technical Drawing
Detailed technical specifications and dimensions for professional reference.
