snap headn.

Forms: Also snap-head.

Etymology: < snap n.

1. A round head to a rivet, bolt, etc.

ΘΚΠ

society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > bolt > parts of

clench1598

bolt-head1691

snug1843

snap head1869

box-strap1874

cup-head1929

1869 E. J. Reed Shipbuilding xvii. 328 The common form of rivet head employed for shipbuilding is that known as ‘pair’ head; but hemispherical or Snap heads are also used.

1889 J. J. Welch Text Bk. Naval Archit. iv. 75 For machine~riveted work, and occasionally for that put together by hand, snap heads and points..are employed.

attributive.1874 S. J. P. Thearle Naval Archit. (new ed.) I. 128 The snap head rivet, used in machine riveting of beams, boilers, etc.

2. A tool used to shape the head of a rivet.

ΘΚΠ

society > occupation and work > equipment > driving or beating tools > [noun] > tool for driving in rivets > for shaping head

dolly1848

snap1869

snap head1875

1875 E. H. Knight Amer. Mech. Dict. III. 1947/2 The end is swaged down by striking directly with a riveting-hammer, or a species of die called a snap-head is interposed.

Derivatives

snap-headed adj.

ΘΚΠ

society > occupation and work > equipment > building and constructing equipment > fastenings > [adjective] > rivet > round-headed

snap-headed1869

1869 E. J. Reed Shipbuilding xvii. 329 The snap-point is sometimes formed on snap-headed rivets.

This entry has not yet been fully updated (first published 1912; most recently modified version published online December 2021).

单词	snap head
释义	snap headn. Forms: Also snap-head. Etymology: < snap n. 1. A round head to a rivet, bolt, etc. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > bolt > parts of clench1598 bolt-head1691 snug1843 snap head1869 box-strap1874 cup-head1929 1869 E. J. Reed Shipbuilding xvii. 328 The common form of rivet head employed for shipbuilding is that known as ‘pair’ head; but hemispherical or Snap heads are also used. 1889 J. J. Welch Text Bk. Naval Archit. iv. 75 For machine~riveted work, and occasionally for that put together by hand, snap heads and points..are employed. attributive.1874 S. J. P. Thearle Naval Archit. (new ed.) I. 128 The snap head rivet, used in machine riveting of beams, boilers, etc. 2. A tool used to shape the head of a rivet. ΘΚΠ society > occupation and work > equipment > driving or beating tools > [noun] > tool for driving in rivets > for shaping head dolly1848 snap1869 snap head1875 1875 E. H. Knight Amer. Mech. Dict. III. 1947/2 The end is swaged down by striking directly with a riveting-hammer, or a species of die called a snap-head is interposed. Derivatives snap-headed adj. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [adjective] > rivet > round-headed snap-headed1869 1869 E. J. Reed Shipbuilding xvii. 329 The snap-point is sometimes formed on snap-headed rivets. This entry has not yet been fully updated (first published 1912; most recently modified version published online December 2021). < n.1869
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