- Assemblage of nine clench bolts, mostly with attached roves for overlapping sections of timber, and most commonly used on clinker- built boats. (a) Length (overall) 56mm. Plank thickness 30.1mm. Rove d. 30mm Shank width 14.5mm (b) Length (overall) 62mm. Plank thickness 33.3mm. Rove d.30mm Shank width 15mm (c) Shank only. Length 69mm, Shank width 19mm (d) Length (overall) 63mm. Plank thickness 35mm. Rove d. 31mm. Shank width 11mm (e) Length (overall) 49.2mm. Plank thickness 32mm. Rove d.28mm Shank width 13mm (f) Length (overall) 44.6mm. Plank thickness 30mm. Rove d.30mm. Shank width 15.6mm (g) Shank only. Length 28mm. Shank width 13.5mm (h) Length (overall) 50mm. Plank thickness 28mm Rove diam. c.26mm Shank width 12mm (i) Length (overall) 59mm.Plank thickness 36mm. Rove diam. c25mm Shank 14.9mm
Photos
- No Files Attached
Interpretation
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- Clench bolts function to join overlapping sections of timber, and most commonly used on clinker- built boats, although other uses are known. The nail is passed through the two sections of plank and then through a small iron plate (rove) and hammered over to produce a secure fastening. Given the coastal location of Holy Island and the presence of other material related to fishing, it is most likely that these relate to boats, although sections of boat strakes and planking were often re-used in secondary contexts. There is little that can be said about the type of boats being used, although the local coble tradition of beach-launched vessels used clinker construction. The plank widths range from c.28mm-36mm which allowing for additional thickness due to overlapping strakes seems broadly commensurate with probable boat planking recovered from fragments of 12th century boat-timbers re-used in a dock revetment in Hartlepool (Young 1987)
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- David Petts
- 3-5-2017
3-D Models
- No models found for this item
Comments
- Ctxt 3015 (Dump layer at the east end of the trench). Medieval (a) Length (overall) 56mm. Plank thickness 30.1mm. Rove d. 30mm Shank width 14.5mm (b) Length (overall) 62mm. Plank thickness 33.3mm. Rove d.30mm Shank width 15mm (c) Shank only. Length 69mm, Shank width 19mm (d) Length (overall) 63mm. Plank thickness 35mm. Rove d. 31mm. Shank width 11mm (e) Length (overall) 49.2mm. Plank thickness 32mm. Rove d.28mm Shank width 13mm (f) Length (overall) 44.6mm. Plank thickness 30mm. Rove d.30mm. Shank width 15.6mm (g) Shank only. Length 28mm. Shank width 13.5mm (h) Length (overall) 50mm. Plank thickness 28mm Rove diam. c.26mm Shank width 12mm (i) Length (overall) 59mm.Plank thickness 36mm. Rove diam. c25mm Shank 14.9mm 9 fragments,
From Context
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Context: LDF_3015
- Dump layer at the East of the trench
- Roger Watson
- 18-6-2016
- Claire Bailey-Ross 26-6-2016