Assorted Expansion Springs - QTY 70 pcs- 7 sizes Extension Tension AB72 pto 50 - M4 x 10

50 - M4 x 10 Fully Treaded Hex Set Screws (Bolts)

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These cast iron bookends are lovely

Designed by Kenton Couse and originally installed in the 1770's

50 mm Pitch) x 55 mm

Assorted Expansion Springs - QTY 70 pcs- 7 sizes Extension Tension AB72 pto 50 - M4 x 10Assorted Expansion Springs QTY 70 pcs 7 sizes Extension Tension AB72 Assorted Expansion Springs Box of 70 Pieces Qty 1 box. Expansion Springs 7 x Sizes (Free Length x O. D.): 29. 5 x 6. 4 mm, 31. 5 x 5. 0 mm, 33. 3 x 6. 8 mm, 56. 5 x 7. 8 mm, 74 x 10. 3 mm, 90 x 11. 4 mm, 126 x 9. 4 mm. 7 x Sizes (Free Length x O. D.): 29. 5 x 6. 4 mm, 31. 5 x 5. 0 mm, 33. 3 x 6. 8 mm, 56. 5 x 7. 8 mm, 74 x 10. 3 mm, 90 x 11. 4 mm, 126 x 9. 4 mm. Test